Fix tests TestInsertCheckUnique for Oracle and SQL Server

#3848 Fix regression for Sql Server and Oracle with exists() introduced in 18.2.0
Fix #3848: exists() generates invalid scalar SQL on SQL Server and Oracle Query.exists() generated `select exists(<subquery>)`, which is valid on Postgres/H2/MySQL but rejected by SQL Server and Oracle since both only support EXISTS as a predicate, not as a directly selectable scalar boolean expression. ┃ ┃ Add DatabasePlatform.existsWithCaseWhen/existsFromClause capability flags and use them in CQueryBuilder.wrapSelectExists() to generate `select case when exists(<subquery>) then 1 else 0 end` on platforms that ┃ need it, with an additional ` from dual` suffix for Oracle (which requires ┃ a FROM clause on every select). CQueryExists reads the boolean result via ┃ ResultSet.getBoolean(1), which correctly interprets the resulting 0/1 int.
2026-09-20 11:17:36 +00:00 · 2026-07-14 09:35:25 +12:00 · 2026-07-14 09:15:41 +12:00 · 2026-07-14 00:34:49 +12:00 · 2026-07-13 23:10:54 +12:00 · 2026-07-13 22:42:16 +12:00
580 changed files with 21371 additions and 4639 deletions
@@ -17,7 +17,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -40,5 +40,7 @@ jobs:
 #    - name: Maven single test
 #      run: mvn --batch-mode clean verify -Dtest="io.ebeaninternal.server.core.DefaultServer_getReferenceTest" -DfailIfNoTests=false
    - name: Build with Maven
-      run: mvn -T 8 clean test -Pdefault
+      run: mvn -T 1C clean install -Pdefault
+    - name: Test SequencedSet and SequencedMap (requires installed MR-JAR)
+      run: cd tests/test-java16 && mvn test

@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: db2
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-db2.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-db2.properties
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -37,5 +37,5 @@ jobs:
    - name: Maven version
      run: mvn --version
    - name: H2Database
-      run: mvn -T 8 clean package
+      run: mvn -T 1C clean package

@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: mariadb 10.11
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-mariadb.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-mariadb.properties
@@ -13,7 +13,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11, 17, 21]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: mysql
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-mysql.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-mysql.properties
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: oracle
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-oracle.properties
+      run: mvn -T 1 clean test -Dprops.file=testconfig/ebean-oracle.properties
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: postgres
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-postgres.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-postgres.properties
@@ -13,7 +13,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -35,4 +35,4 @@ jobs:
          ~/.m2
        key: build-${{ env.cache-name }}
    - name: sqlserver 2022
-      run: mvn -T 8 clean test -Dprops.file=testconfig/ebean-sqlserver.properties
+      run: mvn -T 1C clean test -Dprops.file=testconfig/ebean-sqlserver.properties
@@ -16,7 +16,7 @@ jobs:
    strategy:
      fail-fast: false
      matrix:
-        java_version: [11]
+        java_version: [21]
        os: [ubuntu-latest]

    steps:
@@ -13,6 +13,9 @@ ebean-profiling*.xml
 profiling/
 .DS_Store

+# Local Redis integration test credentials
+ebean-redis/src/test/resources/redis-local.yml
+
 # Intellij project files
 *.iml
 *.ipr
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-clickhouse</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-db2</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-h2</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-hana</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-mariadb</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-mysql</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -14,7 +14,7 @@

  <properties>
    <postgis.jdbc.version>2023.1.0</postgis.jdbc.version>
-    <postgres.jdbc.version>42.7.2</postgres.jdbc.version>
+    <postgres.jdbc.version>42.7.11</postgres.jdbc.version>
  </properties>

  <dependencies>
@@ -22,13 +22,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -47,19 +47,19 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-net-postgis-types</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-nuodb</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-oracle</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -22,13 +22,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -47,19 +47,19 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-pgvector-types</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -22,13 +22,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -47,19 +47,19 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-postgis-types</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-sqlite</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-sqlserver</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -42,13 +42,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-postgres</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
    <relativePath>../..</relativePath>
  </parent>

@@ -17,13 +17,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-core</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -41,7 +41,7 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-jackson-mapper</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
@@ -60,13 +60,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-querybean</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-platform-all</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

  </dependencies>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>

  <artifactId>composites</artifactId>
@@ -183,6 +183,8 @@ database.save(customer);
 | Configure database and `Database` bean | [add-ebean-postgres-database-config.md](guides/add-ebean-postgres-database-config.md) |
 | Add PostgreSQL test container support | [add-ebean-postgres-test-container.md](guides/add-ebean-postgres-test-container.md) |
 | Generate DB migrations | [add-ebean-db-migration-generation.md](guides/add-ebean-db-migration-generation.md) |
+| Migrate JSON APIs from Jackson core to avaje-json-core | [migrating-json-jackson-core-to-avaje-json-core.md](guides/migrating-json-jackson-core-to-avaje-json-core.md) |
+| Know which `@DbJson` types need Jackson vs built-in | [dbjson-mapping-support.md](guides/dbjson-mapping-support.md) |
 | Model entity beans correctly | [entity-bean-creation.md](guides/entity-bean-creation.md) |
 | Use Lombok safely with entities | [lombok-with-ebean-entity-beans.md](guides/lombok-with-ebean-entity-beans.md) |
 | Write type-safe query bean queries | [writing-ebean-query-beans.md](guides/writing-ebean-query-beans.md) |
@@ -11,8 +11,13 @@ Step-by-step guides for common Ebean tasks (Maven setup, database config, query
 Key guides (fetch and follow when performing the relevant task):
 - Maven POM setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-maven-pom.md
 - Database configuration: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-database-config.md
+- Migrate to `Database.builder()`: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/migrating-to-database-builder.md
+- Migrate JSON APIs from Jackson core to avaje-json-core: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/migrating-json-jackson-core-to-avaje-json-core.md
 - Write queries with query beans: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/writing-ebean-query-beans.md
+- Derived / formula properties (`@Formula`, `@Formula2`): https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/derived-formula-properties.md
 - Persisting and transactions: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/persisting-and-transactions-with-ebean.md
+- Query metrics and naming: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/ebean-query-metrics.md
+- Query plan capture: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/ebean-query-plan-capture.md
 - Test container setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-test-container.md
 - DB migration generation: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-db-migration-generation.md
 - Lombok with entity beans: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/lombok-with-ebean-entity-beans.md
@@ -18,12 +18,29 @@ existing Maven project. Complete the steps in order.
 | 2 | [Test container setup](add-ebean-postgres-test-container.md) | Start a PostgreSQL (or PostGIS) Docker container for tests using `@TestScope @Factory` with Avaje Inject; verify the test database works with `mvn verify` before adding production configuration |
 | 3 | [Database configuration](add-ebean-postgres-database-config.md) | Configure the production Ebean `Database` bean using `DataSourceBuilder` and `DatabaseBuilder` with Avaje Inject |

+## Migration & upgrades
+
+| Guide | Description |
+|-------|-------------|
+| [Migrate to `Database.builder()`](migrating-to-database-builder.md) | Replace legacy `new DatabaseConfig()` and `DatabaseFactory.create(...)` code with `Database.builder()` and `DatabaseBuilder.build()`. Includes common rewrites, fluent builder equivalents, and manual-review cases for semi-automated upgrades |
+| [Migrate JSON APIs from Jackson core to avaje-json-core](migrating-json-jackson-core-to-avaje-json-core.md) | Cut over `JsonParser`/`JsonGenerator`/`JsonFactory` usage to `JsonReader`/`JsonWriter`/`JsonStream`, including `DatabaseBuilder`/`DatabaseConfig` JSON config changes and validation checklist |
+
+## Observability
+
+| Guide | Description |
+|-------|-------------|
+| [Ebean OpenTelemetry tracing](add-ebean-opentelemetry.md) | Add `ebean-opentelemetry`, register `GlobalOpenTelemetry` once before Ebean databases are built, and troubleshoot missing spans or double-registration errors |
+| [Ebean query metrics and naming](ebean-query-metrics.md) | How Ebean query metric names are derived from `setLabel(..)` and profile locations; secondary (lazy/query) load naming; inline SQL comments; collecting metrics at runtime; mapping to avaje-metrics tags |
+| [Ebean query plan capture](ebean-query-plan-capture.md) | Enable and configure database query plan (`EXPLAIN`) capture for slow queries; bind capture vs plan capture; periodic and on-demand collection; thresholds, load limits, EXPLAIN dialect, and listeners |
+
 ## Entity beans

 | Guide | Description |
 |-------|-------------|
 | [Entity Bean Creation](entity-bean-creation.md) | How to generate clean, idiomatic Ebean entity beans for AI agents; patterns and anti-patterns; field visibility and accessor guidance; minimal boilerplate |
 | [Lombok with Ebean entity beans](lombok-with-ebean-entity-beans.md) | Which Lombok annotations to use and avoid on entity beans; why `@Data` is incompatible with Ebean; how to use `@Getter` + `@Setter` + `@Accessors(chain = true)` |
+| [`@DbJson` mapping support (built-in vs Jackson)](dbjson-mapping-support.md) | Which `@DbJson` / `@DbJsonB` property types are handled by the built-in avaje-json-core support versus which require `ebean-jackson-mapper` (Jackson `ObjectMapper`); supported `String`/`List`/`Set`/`Map` matrix; enum-key and `@DbArray` notes |
+| [Derived / formula properties (`@Formula`, `@Formula2`)](derived-formula-properties.md) | Read-only computed properties: physical-SQL `@Formula` (with `${ta}` and hand-written joins) versus logical path-based `@Formula2` (auto-resolved joins); use in `select`/`where`/`orderBy`; default inclusion and the `@Transient` opt-out |

 ## Querying

@@ -31,6 +48,7 @@ existing Maven project. Complete the steps in order.
 |-------|-------------|
 | [Write Ebean queries with query beans](writing-ebean-query-beans.md) | Step-by-step guidance for AI agents to write type-safe Ebean queries; choose the right terminal method; tune `select()` / `fetch()` / `fetchQuery()`; and project to DTOs when entity beans are not the right output |
 | [Immutable bean cache for read-only references](immutable-bean-cache.md) | Use `ImmutableBeanCache` and `ImmutableBeanCaches.loading(...)` to resolve assoc-one references in read-only/unmodifiable queries, including secondary `fetchQuery`/`fetchLazy` loads |
+| [Using `RawSql` with Ebean](using-rawsql-with-ebean.md) | Choose between `RawSqlBuilder.parse()`, `unparsed()`, and `withPlaceholders()`; the `${where}`/`${andWhere}`/`${having}`/`${andHaving}` placeholder reference for CTEs, window functions, and subqueries; column mapping; and using `RawSql` with query beans |

 ## Persisting & transactions

@@ -133,8 +151,12 @@ tasks are at: https://github.com/ebean-orm/ebean/tree/HEAD/docs/guides/
 Key guides (fetch and follow these when performing the relevant task):
 - Maven POM setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-maven-pom.md
 - Database configuration: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-database-config.md
+- Migrate to `Database.builder()`: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/migrating-to-database-builder.md
 - Write queries with query beans: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/writing-ebean-query-beans.md
 - Immutable bean cache for read-only references: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/immutable-bean-cache.md
+- Ebean OpenTelemetry tracing: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-opentelemetry.md
+- Query metrics and naming: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/ebean-query-metrics.md
+- Query plan capture: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/ebean-query-plan-capture.md
 - Persisting and transactions: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/persisting-and-transactions-with-ebean.md
 - Test container setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-test-container.md
 - DB migration generation: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-db-migration-generation.md
@@ -158,6 +180,7 @@ tasks are at: https://github.com/ebean-orm/ebean/tree/HEAD/docs/guides/
 Key guides (fetch and follow these when performing the relevant task):
 - Maven POM setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-maven-pom.md
 - Database configuration: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-database-config.md
+- Migrate to `Database.builder()`: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/migrating-to-database-builder.md
 - Write queries with query beans: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/writing-ebean-query-beans.md
 - Persisting and transactions: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/persisting-and-transactions-with-ebean.md
 - Test container setup: https://raw.githubusercontent.com/ebean-orm/ebean/HEAD/docs/guides/add-ebean-postgres-test-container.md
@@ -250,6 +250,40 @@ For each future set of entity bean changes:
 4. Review the generated `.sql` to confirm it reflects the intended changes
 5. Commit both files

+### Protecting hand-edited and non-versioned migrations across regeneration
+
+`GenerateDbMigration` regenerates the apply SQL and model XML from the **current
+entity model**. It can therefore overwrite content you did not change in the
+entity beans, including:
+
+- **hand-edited DDL** in a generated versioned `.sql` file, and
+- **repeatable** (`R__*.sql`) scripts that the generator also derives from the
+  model (e.g. view definitions in `extra-ddl.xml`, built-in partitioning helpers).
+
+**Init scripts (`I__*.sql`) are write-once.** If an init script already exists on
+disk the generator **does not** rewrite it, so hand-tuned init DDL (partition
+functions, `UNLOGGED` tables, triggers, seed data) is preserved across
+regeneration. The trade-off: to pick up an upstream change to a built-in init
+script (e.g. the partition helper) you must **delete the file first**, then
+regenerate. Repeatable scripts are always regenerated.
+
+To avoid losing manual work:
+
+- Prefer an **init** (`I__`) script for hand-maintained DDL the entity model
+  cannot express — it is isolated and now protected from regeneration.
+- For **versioned** `.sql` and **repeatable** `R__` scripts that the generator
+  produces, review the diff after **every** regeneration and **restore** any
+  clobbered hand-tuning (e.g. `git checkout dbmigration/...`) before committing.
+- If your build maintains a migration index file (e.g. `idx_*.migrations`),
+  re-check that the new migration is listed and filenames match after renaming a
+  generated file.
+
+> **Run the generator from the module directory.** The output path set via
+> `setPathToResources(...)` is resolved relative to the **working directory**.
+> Run `GenerateDbMigration` with the working directory set to the module that owns
+> `src/main/resources` (e.g. `cd server` first). Note that `mvn exec:java` does
+> **not** honour a configured `workingDirectory`, so set the cwd yourself.
+
 ---

 ## Understanding the output files
@@ -0,0 +1,158 @@
+# Guide: Add Ebean OpenTelemetry tracing
+
+## Purpose
+
+This guide explains how to enable Ebean transaction tracing with OpenTelemetry and,
+most importantly, how to order startup so Ebean sees the intended global
+OpenTelemetry instance.
+
+Use this guide when adding `ebean-opentelemetry`, diagnosing missing Ebean spans,
+or fixing `GlobalOpenTelemetry` double-registration errors.
+
+---
+
+## Overview
+
+`ebean-opentelemetry` provides an Ebean profiling handler that creates transaction
+spans as children of the current active OpenTelemetry span. It does not create
+top-level request, job, or Lambda invocation spans by itself.
+
+The handler resolves its tracer from `GlobalOpenTelemetry` when the Ebean
+`Database` is configured. For that reason, the application must build and register
+the OpenTelemetry SDK before any Ebean `Database` beans are created.
+
+Rules of thumb:
+
+- Register the global OpenTelemetry instance once.
+- Register it before building Ebean databases.
+- Model that ordering as a real DI dependency.
+- Do not call `GlobalOpenTelemetry.set(...)` or `buildAndRegisterGlobal()` in
+  multiple places.
+
+---
+
+## Step 1 - Add the dependency
+
+```xml
+<dependency>
+  <groupId>io.ebean</groupId>
+  <artifactId>ebean-opentelemetry</artifactId>
+  <version>${ebean.version}</version>
+</dependency>
+```
+
+The module registers the Ebean OpenTelemetry profile handler via `ServiceLoader`.
+No manual Ebean plugin registration is normally required.
+
+---
+
+## Step 2 - Build OpenTelemetry before Ebean databases
+
+Create one application-owned OpenTelemetry bean. For example, when using
+`avaje-metrics-otel`:
+
+```java
+import io.avaje.config.Configuration;
+import io.avaje.inject.Bean;
+import io.avaje.inject.Factory;
+import io.avaje.metrics.otel.MetricsOpenTelemetry;
+import io.opentelemetry.api.OpenTelemetry;
+
+import java.time.Duration;
+
+@Factory
+class OpenTelemetryConfig {
+
+  @Bean
+  OpenTelemetry openTelemetry(Configuration config) {
+    return MetricsOpenTelemetry.builder()
+      .endpoint(config.get("otel.endpoint"))
+      .serviceName(config.get("otel.serviceName", "orders"))
+      .deploymentEnvironmentName(config.get("app.env", "local"))
+      .meterInterval(Duration.ofSeconds(30))
+      .traceInterval(Duration.ofSeconds(30))
+      .buildAndRegisterGlobal();
+  }
+}
+```
+
+If you build the SDK directly, use the same principle: create the SDK once and
+register that instance globally before any Ebean databases are built.
+
+---
+
+## Step 3 - Make database beans depend on OpenTelemetry
+
+In DI code, make the `Database` bean method accept `OpenTelemetry`. This parameter
+is intentionally present to make startup order deterministic: OpenTelemetry is
+created and registered before Ebean configures the database and profile handler.
+
+```java
+import io.avaje.config.Configuration;
+import io.avaje.inject.Bean;
+import io.avaje.inject.Factory;
+import io.ebean.Database;
+import io.ebean.datasource.DataSourceBuilder;
+import io.opentelemetry.api.OpenTelemetry;
+
+@Factory
+class DatabaseConfig {
+
+  @Bean
+  Database database(OpenTelemetry openTelemetry, Configuration config) {
+    var dataSource = DataSourceBuilder.create()
+      .url(config.get("db.url"))
+      .username(config.get("db.username"))
+      .password(config.get("db.password"));
+
+    return Database.builder()
+      .name("db")
+      .dataSourceBuilder(dataSource)
+      .build();
+  }
+}
+```
+
+For Spring, use the same dependency shape: either inject `OpenTelemetry` into the
+database `@Bean` method or use `@DependsOn` to ensure the OpenTelemetry bean is
+initialized first.
+
+Do not invert the dependency by making OpenTelemetry depend on the Ebean
+`Database`. That creates a startup cycle and can still initialize Ebean before the
+global OpenTelemetry instance is ready.
+
+---
+
+## Step 4 - Create a parent span at the application boundary
+
+Ebean transaction spans are child spans. They are only created when a recording
+OpenTelemetry span is active on the current thread.
+
+Use HTTP server instrumentation, Lambda instrumentation, or an application-level
+root span around the top-level request/job boundary. Ebean will then attach
+transaction spans beneath that current span.
+
+---
+
+## Troubleshooting
+
+### `GlobalOpenTelemetry.set has already been called`
+
+This usually means more than one component is trying to register a global SDK, or
+some startup path touched the global before the application registered its SDK.
+
+Fixes:
+
+1. Keep exactly one `buildAndRegisterGlobal()` / `GlobalOpenTelemetry.set(...)`
+   call in the application.
+2. Build that OpenTelemetry bean before Ebean `Database` beans.
+3. Remove duplicate OTEL setup from tests, helper factories, or secondary modules.
+
+### No Ebean spans appear
+
+Check:
+
+1. `ebean-opentelemetry` is on the runtime classpath.
+2. OpenTelemetry is registered before Ebean databases are built.
+3. There is a current recording parent span when Ebean transactions run.
+4. Sampling is not dropping the parent trace.
@@ -1,4 +1,4 @@
-# Guide: Add Ebean ORM (PostgreSQL) to an Existing Maven Project — Step 2: Database Configuration
+# Guide: Add Ebean ORM (PostgreSQL) to an Existing Maven Project — Step 3: Database Configuration

 ## Purpose

@@ -148,7 +148,6 @@ Database database(Configuration config) {
    return Database.builder()
        .name("db")
        .dataSourceBuilder(dataSource)
-        .skipDataSourceCheck(true)
        .build();
 }
 ```
@@ -156,6 +155,11 @@ Database database(Configuration config) {
 If the project has a dedicated config-wrapper class (a `@Component` that reads config
 keys), accept it as a parameter instead of `Configuration`.

+> **Note:** Injecting `Configuration` requires that `avaje-config` is properly wired
+> into the DI context. If you encounter "No dependency provided for
+> io.avaje.config.Configuration" errors, use `Config.get(...)` static access instead
+> (as shown in Step 2).
+
 ---

 ## Step 4 (Optional) — Add a read-only datasource
@@ -85,7 +85,7 @@ already exist:
 ```xml
 <properties>
    <!-- add this line; use latest stable from https://github.com/ebean-orm/ebean/releases -->
-    <ebean.version>17.2.0</ebean.version>
+    <ebean.version>17.5.0</ebean.version>
 </properties>
 ```

@@ -101,7 +101,7 @@ Inside the `<dependencies>` block, add the PostgreSQL JDBC driver:
 <dependency>
    <groupId>org.postgresql</groupId>
    <artifactId>postgresql</artifactId>
-    <version>42.7.8</version>
+    <version>42.7.11</version>
 </dependency>
 ```

@@ -141,8 +141,17 @@ for Postgres test instances:
    <version>${ebean.version}</version>
    <scope>test</scope>
 </dependency>
+<dependency>
+    <groupId>io.avaje</groupId>
+    <artifactId>junit</artifactId>
+    <version>1.8</version>
+    <scope>test</scope>
+</dependency>
 ```

+The `io.avaje:junit` bundle includes JUnit Jupiter (API + engine) and AssertJ,
+avoiding the need to declare those dependencies separately.
+
 ---

 ## Step 4b — Add DI framework dependencies (if applicable)
@@ -156,12 +165,12 @@ annotation processor. Skip this step if the user chose Spring or no DI.
 <dependency>
    <groupId>io.avaje</groupId>
    <artifactId>avaje-inject</artifactId>
-    <version>11.5</version>
+    <version>12.5</version>
 </dependency>
 <dependency>
    <groupId>io.avaje</groupId>
    <artifactId>avaje-inject-test</artifactId>
-    <version>11.5</version>
+    <version>12.5</version>
    <scope>test</scope>
 </dependency>
 ```
@@ -185,7 +194,7 @@ the final `<annotationProcessorPaths>` block should include both:
    <path> <!-- generate avaje-inject DI code -->
        <groupId>io.avaje</groupId>
        <artifactId>avaje-inject-generator</artifactId>
-        <version>11.5</version>
+        <version>12.5</version>
    </path>
 </annotationProcessorPaths>
 ```
@@ -433,3 +433,13 @@ mkdir -p ~/.ebean && touch ~/.ebean/ignore-docker-shutdown
 ```

 On CI servers, omit this file so containers are cleaned up after each build.
+
+---
+
+## Next Steps
+
+- **Add `TestEntityBuilder`** to your test configuration for rapid test data creation
+  with auto-populated random values. See `testing-with-testentitybuilder.md`.
+- **Proceed to Step 3** — production database configuration
+  (`add-ebean-postgres-database-config.md`). Verify this step passes with
+  `mvn verify` before continuing.
@@ -0,0 +1,116 @@
+# Guide: `@DbJson` / `@DbJsonB` mapping support — built-in vs Jackson ObjectMapper
+
+## Purpose
+
+Ebean can map `@DbJson` and `@DbJsonB` properties in two ways:
+
+- **Built-in** JSON support, backed by **avaje-json-core** — no extra dependency.
+- **Jackson `ObjectMapper`**, provided by the **`ebean-jackson-mapper`** module — used
+  for everything the built-in support does not handle.
+
+This guide lists exactly which property types are handled built-in and which require
+`ebean-jackson-mapper`.
+
+> If a property type is **not** handled built-in and `ebean-jackson-mapper` is not on the
+> classpath, Ebean fails fast at startup:
+>
+> ```text
+> Unsupported @DbJson mapping - Missing dependency ebean-jackson-mapper?
+> Jackson ObjectMapper not present for <property>
+> ```
+
+---
+
+## Quick reference
+
+| Property type | Built-in (avaje-json-core) | Needs `ebean-jackson-mapper` |
+|---|:---:|:---:|
+| `String` | ✅ | |
+| `List<String>`, `List<Long>` | ✅ | |
+| `Set<String>`, `Set<Long>` | ✅ | |
+| `Map<String, Object>`, `Map<String, ?>` | ✅ | |
+| `Map<String, String>` | ✅ | |
+| `Map<Enum, Object>`, `Map<Enum, String>` | ✅ | |
+| `List`/`Set` of any other element type (`Integer`, `Double`, `UUID`, `LocalDate`, an enum, a POJO, …) | | ✅ |
+| `Map` with a typed value other than `String`/`Object` (`Map<String,Integer>`, `Map<String,UUID>`, …) | | ✅ |
+| `Map` with a key other than `String` or an enum (`Map<Integer, …>`, `Map<UUID, …>`) | | ✅ |
+| POJOs, records, or any other type | | ✅ |
+
+---
+
+## Built-in support (no Jackson required)
+
+The built-in path materialises JSON into the *natural* JSON value types
+(`String`, `Long`, `BigDecimal`, `Boolean`, `Map`, `List`). It is therefore type-safe only
+for the following declared property types:
+
+- **`String`** — stored as raw JSON text.
+- **`List<String>`** and **`List<Long>`**.
+- **`Set<String>`** and **`Set<Long>`**.
+- **`Map<K, V>`** where:
+  - the key `K` is `String` or an **enum**, and
+  - the value `V` is `Object`, `String`, or a wildcard `?`.
+
+  So `Map<String,Object>`, `Map<String,String>`, `Map<Enum,Object>` and `Map<Enum,String>`
+  are all built-in.
+
+These mappings work across all supported storage types — `VARCHAR`, `CLOB`, `BLOB`, and
+Postgres `json` / `jsonb` — without `ebean-jackson-mapper`.
+
+---
+
+## Everything else → Jackson `ObjectMapper`
+
+Any other `@DbJson` / `@DbJsonB` property routes to the Jackson `ObjectMapper` path, which
+requires `ebean-jackson-mapper`:
+
+- **Typed collections** — `List`/`Set` whose element type is not `String` or `Long`
+  (for example `List<Integer>`, `List<UUID>`, `List<LocalDate>`, `List<MyEnum>`, `List<MyPojo>`).
+- **Typed-value maps** — a `Map` value type other than `String`/`Object`
+  (for example `Map<String,Integer>`, `Map<String,UUID>`, `Map<String,MyPojo>`).
+- **Non-`String`/non-enum map keys** — for example `Map<Integer,Object>`, `Map<UUID,String>`.
+- **POJOs, records, and any other custom type.**
+
+> **Jackson marker annotation override:** if the **field or getter** carries a Jackson annotation
+> (anything meta-annotated with `com.fasterxml.jackson.annotation.JacksonAnnotation`), Ebean
+> uses the `ObjectMapper` path even when the type would otherwise be handled built-in.
+
+---
+
+## Adding `ebean-jackson-mapper`
+
+```xml
+<dependency>
+  <groupId>io.ebean</groupId>
+  <artifactId>ebean-jackson-mapper</artifactId>
+  <version>${ebean.version}</version>
+</dependency>
+```
+
+A Jackson `ObjectMapper` must be available (via `jackson-databind`). Ebean detects it and
+registers the mapper-based JSON support automatically.
+
+---
+
+## Notes
+
+- **Enum map keys** are serialised using the enum `name()` (for example `ACTIVE`), not any
+  `@DbEnumValue` mapping. Round-trips are correct; the DB value mapping is not applied to
+  JSON keys.
+- **`@DbArray` alternative:** for typed *scalar* collections (`List`/`Set` of `Integer`,
+  `Long`, `UUID`, `Double`, an enum, …) consider `@DbArray`, which maps to a native DB array
+  (with a JSON fallback on platforms without array support) and supports more element types
+  than built-in `@DbJson` collections.
+- The reason typed value/element collections need a real mapper is that the built-in path
+  only produces natural JSON types — for example a JSON number always parses to `Long`, so a
+  declared `List<Integer>` or `Map<String,Integer>` could not be populated safely without a
+  type-aware mapper.
+
+---
+
+## Choosing
+
+- Prefer the **built-in** mappings for the common cases (`String`, string/long lists and sets,
+  object/string maps) to avoid pulling in Jackson.
+- Add **`ebean-jackson-mapper`** when you need rich POJO JSON columns or typed collections /
+  typed-value maps.
@@ -0,0 +1,164 @@
+# Guide: Derived / formula properties — `@Formula` and `@Formula2`
+
+## Purpose
+
+A *formula property* is a read-only entity property whose value is computed by a SQL
+expression at query time rather than stored in its own column. Ebean has two
+annotations for this:
+
+- **`@Formula`** — you write the **physical SQL** for the `select` (and any `join`),
+  using the `${ta}` placeholder for the base table alias. Maximum control; verbose.
+- **`@Formula2`** — you write a **logical expression** using dot-notation property
+  paths (e.g. `parent.familyName`). Ebean translates the paths to the correct table
+  aliases and **adds the required JOINs automatically**.
+
+`@Formula2` is intended as the easier, path-based replacement for `@Formula`. Both
+produce read-only properties and behave the same way with respect to default
+inclusion (see [Default inclusion](#default-inclusion-and-transient)).
+
+---
+
+## Quick comparison
+
+| | `@Formula` | `@Formula2` |
+|---|---|---|
+| Expression | Physical SQL columns + aliases | Logical property paths |
+| Table alias | `${ta}` placeholder you write | Resolved automatically |
+| Joins | You write the `join` clause | Added automatically from the paths |
+| Read only | ✅ | ✅ |
+| Included by default | ✅ (use `@Transient` to opt out) | ✅ (use `@Transient` to opt out) |
+| Usable in `select` / `where` / `orderBy` / `having` | ✅ | ✅ |
+| Creates a DB column (DDL) | ❌ | ❌ |
+
+---
+
+## `@Formula` — physical SQL
+
+You supply the SQL `select` fragment, and an optional `join`. Use `${ta}` wherever you
+need the base table alias of the entity.
+
+```java
+@Entity
+public class ParentPerson {
+
+  // aggregation via a derived join; ${ta} is the base table alias
+  @Formula(select = "coalesce(f2.child_count, 0)",
+           join = "left join (select parent_id, count(*) as child_count"
+                + " from child group by parent_id) f2 on f2.parent_id = ${ta}.id")
+  Integer childCount;
+
+  // coalesce across a joined table using an explicit join alias (j1)
+  @Formula(select = "coalesce(${ta}.family_name, j1.family_name)",
+           join = "join parent_person j1 on j1.id = ${ta}.parent_id")
+  String effectiveFamilyName;
+}
+```
+
+Notes:
+- The `join` string must start with `join` or `left join`.
+- You manage the join aliases (`j1`, `f2`, …) yourself and reference them in `select`.
+- `@Formula` is `@Repeatable` and supports a `platforms()` restriction.
+
+---
+
+## `@Formula2` — logical property paths
+
+Write the expression using property paths. Ebean resolves each path to the right table
+alias and adds the joins it needs.
+
+```java
+@Entity
+public class ParentPerson {
+
+  @ManyToOne
+  GrandParentPerson parent;
+
+  String familyName;
+
+  // Ebean automatically left joins 'parent' and resolves the aliases
+  @Formula2("coalesce(familyName, parent.familyName)")
+  String derivedFamilyName;
+}
+```
+
+A query selecting `derivedFamilyName` produces (roughly):
+
+```sql
+select t0.id, coalesce(t0.family_name, t1.family_name)
+from parent_person t0
+left join grand_parent_person t1 on t1.id = t0.parent_id
+```
+
+Multi-level paths join through each step:
+
+```java
+// joins parent and parent.parent automatically
+@Formula2("coalesce(familyName, parent.familyName, parent.parent.familyName)")
+String deepFamilyName;
+```
+
+`@Formula2` works wherever a normal property does — the required joins are added
+automatically in each case:
+
+```java
+// selected explicitly
+DB.find(ParentPerson.class).select("derivedFamilyName").findList();
+
+// used in where (auto-joins even when not selected)
+DB.find(ParentPerson.class).where().eq("derivedFamilyName", "Smith").findList();
+
+// used in order by
+DB.find(ParentPerson.class).orderBy("derivedFamilyName").findList();
+
+// referenced via a path from another bean
+DB.find(ChildPerson.class).where().eq("parent.derivedFamilyName", "Smith").findList();
+```
+
+It also resolves correctly inside nested `fetch()` joins, so a `@Formula2` on a fetched
+association is computed with its own joins relative to that association.
+
+Notes:
+- The expression supports any SQL function whose arguments are logical property paths.
+- `@Formula2` supports a `platforms()` restriction.
+- No `${ta}` and no hand-written join — that is the point of `@Formula2`.
+
+---
+
+## Default inclusion and `@Transient`
+
+Both annotations are **included in queries by default** (just like a normal mapped
+property). When no explicit `select()`/`fetch()` is given, the formula — and for
+`@Formula2` the joins it requires — are added to the query.
+
+Add `@Transient` to make the formula **opt-in**: it is then **not** selected by default
+and must be requested explicitly via `select()` or `fetch()`. Do this when the formula
+(or the joins it needs) is relatively expensive.
+
+```java
+// not selected by default; must be requested explicitly
+@Transient
+@Formula2("coalesce(familyName, parent.familyName)")
+String lazyDerivedFamilyName;
+```
+
+```java
+DB.find(ParentPerson.class)
+  .select("lazyDerivedFamilyName")   // explicitly included, join auto-added
+  .findList();
+```
+
+This is the same `@Transient` opt-out mechanism used by `@Formula`.
+
+---
+
+## Which should I use?
+
+- Prefer **`@Formula2`** for expressions over property paths (coalesce/case/functions
+  across associations). It is shorter, refactor-friendly, and the joins stay correct as
+  the model changes.
+- Use **`@Formula`** when you need raw SQL that does not map cleanly to property paths —
+  for example a derived aggregate sub-select / dynamic view, or vendor-specific SQL.
+
+For read models that exist only to carry computed values, also consider projecting to a
+DTO instead of mapping the formula onto the entity — see
+[writing-ebean-query-beans.md](writing-ebean-query-beans.md).
@@ -0,0 +1,262 @@
+# Guide: Ebean query metrics and naming
+
+## Purpose
+
+This guide explains the metrics Ebean captures, how the metric **name** for a query
+is derived, and how you influence that name with `setLabel(..)` and **profile
+locations**. It also covers secondary (lazy / query) load naming, the inline SQL
+comment, collecting metrics at runtime, and how the names map to avaje-metrics tags.
+
+Use this guide when you want to identify a query in metrics/telemetry, when a query
+shows up under an unexpected metric name, or when wiring Ebean metrics into a reporter.
+
+---
+
+## Overview
+
+Ebean records timing and counter metrics for the work it does. Every metric has a
+**name** whose leading segment identifies the kind of work:
+
+| Prefix | What it measures | Example name |
+|---|---|---|
+| `orm.` | Entity (ORM) query | `orm.Customer.findList`, `orm.CustomerFinder.byName` |
+| `dto.` | DTO query | `dto.CustomerDto.byEmail` |
+| `sql.query.` | Raw SQL query | `sql.query.<label>` |
+| `sql.update.` / `sql.call.` | Raw SQL update / stored procedure call | `sql.update.<label>` |
+| `orm.update.` | ORM update statement | `orm.update.<label>` |
+| `iud.` | Bean insert / update / delete | `iud.Customer.insert` |
+| `txn.main` / `txn.readonly` / `txn.named.` | Transactions | `txn.main`, `txn.named.processOrders` |
+| `l2n.` | L2 cache region | `l2n.customer.hit` |
+
+The rest of this guide focuses on **`orm.` query names**, which is where labels and
+profile locations apply.
+
+---
+
+## How an ORM query name is derived
+
+An entity query name has the form `orm.<identifier>`. The `<identifier>` comes from one
+of three sources, in priority order:
+
+1. **An explicit `setLabel(..)`** — prefixed with the bean type for disambiguation.
+2. **A profile location** — used as-is (it is already a unique `Class.method` identifier).
+3. **Neither** — the bean type plus the query type (e.g. `findList`).
+
+| Root query source | Resulting name |
+|---|---|
+| `setLabel("custMain")` on `Customer` | `orm.Customer.custMain` |
+| Profile location `CustomerFinder.byName` | `orm.CustomerFinder.byName` |
+| Unlabelled `DB.find(Customer.class).findList()` | `orm.Customer.findList` |
+
+The asymmetry is intentional: an explicit label is a short, ambiguous token (`custMain`
+could be used for any bean), so the bean type is prefixed. A profile location is already
+unique and type-independent, so it is used as-is.
+
+### Step 1 - Label a query explicitly
+
+```java
+List<Customer> customers = DB.find(Customer.class)
+  .setLabel("custMain")
+  .findList();
+// metric name: orm.Customer.custMain
+```
+
+DTO queries support `setLabel(..)` too, and follow the **same naming convention** as
+ORM queries — an explicit label is prefixed with the DTO type, a profile location is
+used as-is, and an unlabelled DTO query uses just the DTO type:
+
+```java
+DB.findDto(CustomerDto.class, sql)
+  .setLabel("byEmail")
+  .findList();
+// metric name: dto.CustomerDto.byEmail
+//   profile location only ->  dto.<location>      (no type prefix)
+//   unlabelled            ->  dto.CustomerDto
+```
+
+### Step 2 - Use a profile location (preferred for finders / query beans)
+
+A profile location identifies a query by its **call site** (`Class.method`) instead of a
+hand-written label.
+
+**The common case is automatic.** With Ebean's byte-code enhancement enabled (the normal
+setup when using query beans / finders), Ebean assigns each query a profile location
+derived from its call site — no code is required:
+
+```java
+List<Customer> customers = new QCustomer()
+  .status.eq(Status.ACTIVE)
+  .findList();
+// metric name: orm.<CallingClass>.<method>  (often with a line number, see below)
+```
+
+The enhancer derives the location from the calling code (the method that runs the query),
+and for many call sites it includes the **source line number** (e.g.
+`CustomerService.find:42`), so distinct call sites — even in the same method — get distinct
+names automatically.
+
+**Setting one explicitly.** You can also set a profile location yourself, which is useful
+without enhancement or to control the identity:
+
+```java
+ProfileLocation LOC = ProfileLocation.create();
+
+List<Customer> customers = DB.find(Customer.class)
+  .setProfileLocation(LOC)
+  .where().eq("status", Status.ACTIVE)
+  .findList();
+// metric name: orm.<DeclaringClass>.<method>
+```
+
+Factory choices:
+
+- `ProfileLocation.create()` — call site as `Class.method`, **no line number**.
+- `ProfileLocation.createWithLine()` — includes the source line number
+  (e.g. `CustomerService.find:42`), so two queries in the **same method** get
+  **distinct** names.
+- `ProfileLocation.create("label")` — a named location (used for named transactions).
+
+> Note: a location with no line number (`create()`, or a call site the enhancer emits
+> without a line) means two different queries in the same method share one name. The
+> queried entity is still distinguishable downstream via the avaje-metrics `type` tag
+> (see "Mapping to avaje-metrics tags" below). Use `createWithLine()` to separate
+> same-method call sites in the name itself.
+
+---
+
+## Secondary (lazy / query) load naming
+
+When a query lazy-loads or `fetchQuery()`-loads an association, Ebean issues a
+**secondary** query. Its name **extends the parent query's full name** with the relative
+path and the load mode (`lazy` or `query`), joined with `.`:
+
+```
+orm.<parent name without the "orm." prefix>.<path>.<loadMode>
+```
+
+So a secondary load is always an exact extension of its parent metric name, which makes
+the relationship obvious in dashboards.
+
+Example — root labelled `custMain` on `Customer`, chain `Customer -> orders -> details`:
+
+Lazy loading:
+```
+orm.Customer.custMain
+orm.Customer.custMain.orders.lazy
+orm.Customer.custMain.orders.lazy.details.lazy
+```
+
+Secondary eager `fetchQuery()` loading:
+```
+orm.Customer.custMain
+orm.Customer.custMain.orders.query
+orm.Customer.custMain.orders.query.details.query
+```
+
+The same applies with a **profile-location** root (no explicit `setLabel`):
+```
+orm.CustomerFinder.byName
+orm.CustomerFinder.byName.contacts.lazy
+```
+
+Unlike the root query, the secondary name is **not** bean-type prefixed by the loaded
+type — it inherits the parent's name so it relates back to where the load originated.
+
+---
+
+## Inline SQL comment
+
+When `includeLabelInSql` is enabled (the default), Ebean prepends the query's label (or
+profile-location label) as an inline SQL comment, which is useful for matching slow
+queries in database logs back to application code:
+
+```sql
+select /* CustomerFinder.byName */ t0.id, t0.name from be_customer t0 where ...
+```
+
+The comment uses the explicit `setLabel(..)` if present, otherwise the profile-location
+label. Secondary queries use their full extended name
+(e.g. `/* Customer.custMain.contacts.query */`). `EXISTS` / subquery forms are not
+commented.
+
+Disable it via the builder:
+
+```java
+Database.builder()
+  .includeLabelInSql(false)
+  .build();
+```
+
+---
+
+## Collecting metrics at runtime
+
+Read collected metrics through `Database.metaInfo()`:
+
+```java
+import io.ebean.meta.MetaQueryMetric;
+import io.ebean.meta.ServerMetrics;
+
+ServerMetrics metrics = database.metaInfo().collectMetrics(); // resets counters
+
+for (MetaQueryMetric q : metrics.queryMetrics()) {
+  System.out.printf("%s type=%s count=%d total=%d mean=%d%n",
+    q.name(),                 // e.g. orm.Customer.custMain
+    q.type().getSimpleName(), // the queried bean/DTO type, e.g. Customer
+    q.count(), q.total(), q.mean());
+}
+```
+
+Key API:
+
+- `database.metaInfo()` → `MetaInfoManager`.
+- `collectMetrics()` collects and **resets**; `collectMetrics(false)` collects without
+  reset; `visitMetrics(visitor)` for streaming.
+- `ServerMetrics` exposes `queryMetrics()`, `timedMetrics()`, `countMetrics()`.
+- `MetaQueryMetric` exposes `name()`, `label()`, `type()` (the queried `Class<?>`),
+  `sql()`, `hash()`, plus timing `count()` / `total()` / `max()` / `mean()`.
+
+---
+
+## Mapping to avaje-metrics tags
+
+When integrating with **avaje-metrics** (`avaje-metrics-ebean`
+`DatabaseMetricSupplier`), the flat `orm.`/`dto.`/`sql.` names are translated to a tagged
+form, with the bean type carried as a `type` tag:
+
+```
+ebean.query{kind=orm|dto|sql, type=<BeanSimpleName>, label=<rest of the name>}
+```
+
+Because the entity is available as the `type` tag, two different-entity queries that
+share a profile-location name remain distinct series on tag-aware backends (OpenTelemetry,
+Prometheus, StatsD) without needing the bean type in the name.
+
+For the integration setup, see the avaje-metrics guide
+[`add-ebean-metrics.md`](https://github.com/avaje/avaje-metrics/blob/master/docs/guides/add-ebean-metrics.md).
+
+To capture the database execution plan (`EXPLAIN`) for slow queries identified by these
+metrics, see [Ebean query plan capture](ebean-query-plan-capture.md).
+
+---
+
+## Troubleshooting
+
+### A query shows up as `orm.<Bean>.findList` (no useful identity)
+
+It has neither a label nor a profile location. Add `setLabel(..)` or a
+`ProfileLocation`, or apply a profile location on the finder / query bean.
+
+### Two queries in one method share a metric name
+
+This happens when the profile location for those call sites has no line number. With
+enhancement, many call sites already include a line number; for those that don't, use
+`ProfileLocation.createWithLine()` to separate them by line, or give each an explicit
+`setLabel(..)`. On tag-aware backends the avaje-metrics `type` tag already separates
+different entity types.
+
+### A secondary (lazy / query) load isn't grouped under its parent
+
+Secondary names extend the parent's full name. If the parent has no label or profile
+location, its name falls back to `orm.<Bean>.<queryType>` and the secondary extends
+that. Give the root query a label or profile location for a stable parent name.
@@ -0,0 +1,242 @@
+# Guide: Ebean query plan capture
+
+## Purpose
+
+This guide explains how to enable and configure **query plan capture** in Ebean — the
+mechanism that captures the database's actual execution plan (via `EXPLAIN`) for slow
+queries, so you can diagnose missing indexes and poor plans in production.
+
+Use this guide when you want Ebean to record real query plans, when tuning the capture
+thresholds and load limits, or when wiring a listener to ship captured plans somewhere.
+
+---
+
+## Overview
+
+Query plan capture is a **two-phase** mechanism:
+
+1. **Bind capture** — when enabled, Ebean watches query executions and, for queries
+   slower than a threshold, captures the actual **bind values** that were used. This is
+   cheap: it just remembers the parameters of a slow execution.
+2. **Plan capture** — using those captured bind values, Ebean runs `EXPLAIN <sql>`
+   against the database to obtain the execution plan, producing `MetaQueryPlan` results
+   that are handed to a `QueryPlanListener`.
+
+Plan capture is split this way so the expensive `EXPLAIN` work (actual database load)
+happens periodically or on demand, against representative bind values, rather than on
+every slow query.
+
+Two ways to trigger phase 2:
+
+- **Automatic periodic capture** — a background timer collects plans on a schedule.
+- **On demand** — call the `MetaInfoManager` API to arm and collect plans yourself
+  (this is what remote tooling such as ebean-insight uses).
+
+Plan capable queries are:
+
+- **ORM entity SELECT queries** (`orm.*` metrics) — captured via the per-entity `BeanDescriptor`.
+- **Native-SQL `DtoQuery`** (`dto.*` metrics) — a `DtoQuery` created from a SQL string
+  (`DB.findDto(MyDto.class, "select ...")`) has its own bind capture and is `EXPLAIN`'d directly.
+- **ORM-backed `DtoQuery`** (`Query.asDto(...)`) — captured via the *underlying* ORM query plan
+  (`orm.*`), not the `dto.*` plan. The `dto.*` plan itself is **not** armed in this case, so it
+  does not double-count in `queryPlanInit`.
+- **Native-SQL `SqlQuery`** (`sql.query.*` metrics) — a **labelled** `SqlQuery`
+  (`DB.sqlQuery("select ...").setLabel("myLabel")`) has its own bind capture and is `EXPLAIN`'d
+  directly. A label is required: without `setLabel(...)` the query produces no metric and no plan.
+
+Specifically **excluded** are:
+
+- **Update / DML** — `orm.update.*`, `iud.*`, `sql.update.*`, `sql.call.*`.
+
+Bind capture is wired into the ORM query path (per-entity `BeanDescriptor`), the native-SQL DTO
+path (per-DTO `DtoBeanDescriptor`), and the native-SQL `SqlQuery` path (the relational query
+engine); the init/collect API iterates all three. DML — even though it produces timing metrics —
+never captures bind values and cannot be `EXPLAIN`'d.
+
+> **Cost when disabled:** SqlQuery plan capture is fully gated on the `queryPlan.enable` master
+> switch. When capture is disabled no `SqlQuery` plans are created or cached, so labelled queries
+> incur no extra cost beyond their existing timing metric.
+
+---
+
+## Step 1 - Enable bind capture
+
+Bind capture is the master switch; nothing is captured until it is on.
+
+> **Security — bind values may contain PII.** Bind capture records the **actual
+> parameter values** used by slow query executions, and those values are stored
+> and shown verbatim in the captured plan output (alongside the SQL and EXPLAIN
+> plan). They can therefore contain personal or otherwise sensitive data. Capture
+> is opt-in and off by default (`queryPlan.enable=false`): only enable it where
+> that data exposure is acceptable, restrict who can read captured plans, and
+> prefer arming specific query hashes (Step 3) over a low global threshold so you
+> capture the minimum needed.
+
+```java
+Database database = Database.builder()
+  .queryPlanEnable(true)               // turn on bind capture
+  .queryPlanThresholdMicros(100_000)   // capture binds for queries slower than 100ms
+  .build();
+```
+
+- `queryPlanEnable(boolean)` — enable bind capture. Default **false**.
+- `queryPlanThresholdMicros(long)` — global execution-time threshold (microseconds) a
+  query must exceed before its bind values are captured. Default **`Long.MAX_VALUE`**
+  (effectively off), so you must either lower it or arm specific plans by hash (Step 3).
+
+Equivalent `application.properties` (avaje-config / properties):
+
+```properties
+queryPlan.enable=true
+queryPlan.thresholdMicros=100000
+```
+
+---
+
+## Step 2 - Enable automatic periodic capture (optional)
+
+To have Ebean periodically run `EXPLAIN` for armed queries and report the plans:
+
+```java
+Database database = Database.builder()
+  .queryPlanEnable(true)
+  .queryPlanThresholdMicros(100_000)
+  .queryPlanCapture(true)                  // turn on the periodic capture timer
+  .queryPlanCapturePeriodSecs(600)         // every 10 minutes (default)
+  .queryPlanCaptureMaxTimeMillis(10_000)   // stop after 10s of capturing per cycle
+  .queryPlanCaptureMaxCount(10)            // at most 10 plans per cycle
+  .queryPlanListener(capture -> {
+    for (var plan : capture.plans()) {
+      System.out.println(plan.label() + "\n" + plan.plan());
+    }
+  })
+  .build();
+```
+
+- `queryPlanCapture(boolean)` — enable the background periodic capture. Default **false**.
+- `queryPlanCapturePeriodSecs(long)` — capture frequency in seconds. Default **600** (10 min).
+- `queryPlanCaptureMaxTimeMillis(long)` — per-cycle time budget; capture stops once
+  exceeded, bounding the database load. Default **10000** (10s).
+- `queryPlanCaptureMaxCount(int)` — max plans captured per cycle. Default **10**.
+- `queryPlanListener(QueryPlanListener)` — receives each `QueryPlanCapture`. If not set,
+  the default listener logs plans to the `io.ebean.QUERYPLAN` logger at `INFO`.
+
+Properties form:
+
+```properties
+queryPlan.enable=true
+queryPlan.thresholdMicros=100000
+queryPlan.capture=true
+queryPlan.capturePeriodSecs=600
+queryPlan.captureMaxTimeMillis=10000
+queryPlan.captureMaxCount=10
+```
+
+---
+
+## Step 3 - Capture on demand (foreground)
+
+Instead of (or in addition to) the periodic timer, drive capture through
+`database.metaInfo()`. This is useful for targeted capture and is how remote tooling
+arms specific slow queries by their plan hash.
+
+```java
+import io.ebean.meta.MetaInfoManager;
+import io.ebean.meta.MetaQueryPlan;
+import io.ebean.meta.QueryPlanInit;
+import io.ebean.meta.QueryPlanRequest;
+
+MetaInfoManager meta = database.metaInfo();
+
+// Phase 1: arm bind capture - either all plans or specific hashes
+QueryPlanInit init = new QueryPlanInit();
+init.setAll(true);                 // or init.add("<planHash>", 50_000);
+init.thresholdMicros(100_000);
+List<MetaQueryPlan> armed = meta.queryPlanInit(init);
+
+// ... let the application run so slow executions capture their bind values ...
+
+// Phase 2: collect plans now (runs EXPLAIN)
+QueryPlanRequest request = new QueryPlanRequest();
+request.maxCount(10);
+request.maxTimeMillis(10_000);
+request.since(System.currentTimeMillis() - 300_000); // binds at least ~5 min old
+List<MetaQueryPlan> plans = meta.queryPlanCollectNow(request);
+```
+
+- `QueryPlanInit` arms bind capture. `setAll(true)` arms every plan; `add(hash, micros)`
+  arms a specific plan (a hash of `"all"` is treated as all).
+- `QueryPlanRequest.since(epochMillis)` ensures the captured bind values have existed for
+  a while, so they better represent the slowest executions. `maxCount` / `maxTimeMillis`
+  bound the work, mirroring the periodic settings.
+
+`MetaQueryPlan` exposes `beanType()`, `label()`, `profileLocation()`, `sql()`, `hash()`,
+`bind()`, `plan()` (the raw EXPLAIN output), `queryTimeMicros()`, `captureCount()`,
+`captureMicros()`, and `whenCaptured()`.
+
+---
+
+## Step 4 - EXPLAIN dialect
+
+Ebean chooses the `EXPLAIN` statement per database platform:
+
+| Platform | EXPLAIN used |
+|---|---|
+| PostgreSQL | `explain (analyze, costs, verbose, buffers) <sql>` |
+| YugabyteDB | `explain (analyze, buffers, dist) <sql>` |
+| Oracle | `EXPLAIN PLAN FOR <sql>` |
+| SQL Server | platform-specific logger |
+| H2 / MySQL / other | `explain <sql>` |
+
+Override the prefix with `queryPlanExplain(..)` (or `queryPlan.explain`):
+
+```java
+Database.builder()
+  .queryPlanExplain("explain (costs, verbose)") // omit ANALYZE on Postgres
+  .build();
+```
+
+> **Caution (PostgreSQL / Yugabyte):** the default includes `ANALYZE`, which **actually
+> executes** the query to produce real timings. For non-idempotent or expensive queries,
+> override with a non-ANALYZE `explain` to avoid side effects and extra load.
+
+---
+
+## Related setting: internal plan TTL
+
+`queryPlanTTLSeconds(int)` (default **300**) is a **different** concept — it is the time to
+live for Ebean's *internal* query plan (the object that knows how to execute a query, read
+the result set and collect metrics). It is not part of EXPLAIN capture, but is set through
+the same builder.
+
+---
+
+## Troubleshooting
+
+### No plans are captured
+
+1. `queryPlanEnable(true)` must be set — it is the master switch.
+2. `queryPlanThresholdMicros` defaults to `Long.MAX_VALUE`. Lower it, or arm specific
+   plans via `QueryPlanInit`, otherwise no execution is ever "slow enough".
+3. For periodic capture, also set `queryPlanCapture(true)`.
+4. Queries must actually run slower than the threshold to have their binds captured.
+
+### Plans appear but nothing is reported anywhere
+
+No `queryPlanListener` is configured, so plans go to the default `io.ebean.QUERYPLAN`
+logger. Set a listener, or enable `INFO` logging for `io.ebean.QUERYPLAN`.
+
+### Capture adds noticeable database load
+
+`EXPLAIN ANALYZE` executes the query. Reduce `queryPlanCaptureMaxCount`, increase
+`queryPlanCapturePeriodSecs`, tighten `queryPlanCaptureMaxTimeMillis`, or override
+`queryPlanExplain` to a non-ANALYZE form.
+
+### An unlabelled SqlQuery or update metric never offers plan capture
+
+ORM entity SELECT queries (`orm.*`), native-SQL `DtoQuery` (`dto.*`) and native-SQL
+**labelled** `SqlQuery` (`sql.query.*`) are plan capable. ORM-backed DTO queries
+(`Query.asDto(...)`) are captured via their underlying ORM plan (`orm.*`), not the `dto.*` plan.
+An unlabelled `SqlQuery` produces no metric and no plan — add `setLabel(...)` to make it
+capturable. Write metrics (`orm.update.*`, `iud.*`, `sql.update.*`, `sql.call.*`) have no bind
+capture and are intentionally excluded.
@@ -0,0 +1,91 @@
+# Guide: Migrate JSON APIs from Jackson core to avaje-json-core
+
+## Purpose
+
+This guide covers the one-step cutover in Ebean from Jackson core JSON APIs to
+avaje-json-core APIs.
+
+Use this when upgrading code that references:
+
+- `com.fasterxml.jackson.core.JsonParser`
+- `com.fasterxml.jackson.core.JsonGenerator`
+- `com.fasterxml.jackson.core.JsonFactory`
+
+The replacement types are:
+
+- `io.avaje.json.JsonReader`
+- `io.avaje.json.JsonWriter`
+- `io.avaje.json.stream.JsonStream`
+
+---
+
+## Breaking API changes
+
+| Previous API | New API |
+|---|---|
+| `JsonParser` | `JsonReader` |
+| `JsonGenerator` | `JsonWriter` |
+| `JsonFactory` | `JsonStream` |
+| `DatabaseBuilder.jsonFactory(...)` | `DatabaseBuilder.jsonStream(...)` |
+| `DatabaseConfig.getJsonFactory()/setJsonFactory(...)` | `DatabaseConfig.getJsonStream()/setJsonStream(...)` |
+
+---
+
+## Typical migration rewrites
+
+### Parser and generator signatures
+
+```java
+// before
+void read(JsonParser parser)
+void write(JsonGenerator generator)
+
+// after
+void read(JsonReader parser)
+void write(JsonWriter generator)
+```
+
+### Database configuration
+
+```java
+// before
+Database.builder().jsonFactory(factory)
+
+// after
+Database.builder().jsonStream(stream)
+```
+
+### JSON utility calls
+
+`EJson` and `JsonContext` APIs now operate on `JsonReader` and `JsonWriter` types.
+If your code was calling those APIs with Jackson core types, switch to avaje types.
+
+---
+
+## Dependency and module notes
+
+- `ebean-core` no longer requires a direct `jackson-core` dependency for JSON
+  parsing/writing.
+- `jackson-databind` remains optional for `ObjectMapper` compatibility paths.
+- `ebean-jackson-mapper` remains the compatibility bridge module for mapper-based
+  integrations.
+
+---
+
+## Behavior notes to verify during upgrade
+
+1. Parser token handling is now based on avaje `JsonReader.Token`.
+2. Scalar JSON reads (for example booleans, date-time, array scalar types) should
+   be validated in your tests if you previously depended on Jackson token quirks.
+3. If your integration uses transient assoc-many JSON mapping with ObjectMapper,
+   keep ObjectMapper wiring enabled.
+
+---
+
+## Validation checklist
+
+1. Compile all modules that implement or consume `io.ebean.text.json` APIs.
+2. Run module tests that cover JSON scalar conversion and bean JSON round-trips.
+3. Confirm no remaining `com.fasterxml.jackson.core.*` imports in migrated code.
+4. Keep `ObjectMapper` compatibility tests if your project depends on mapper paths.
+
@@ -0,0 +1,242 @@
+# Guide: Migrate from `DatabaseConfig` / `DatabaseFactory` to `Database.builder()`
+
+## Purpose
+
+This guide shows how to migrate legacy programmatic database creation code from:
+
+- `new DatabaseConfig()`
+- `DatabaseFactory.create(...)`
+- old `setXxx(...)` builder-style configuration methods
+
+…to the preferred builder-based style using:
+
+- `Database.builder()`
+- fluent `DatabaseBuilder` methods such as `name(...)`, `register(...)`, and `defaultDatabase(...)`
+- `DatabaseBuilder.build()`
+
+Use this guide when upgrading older Ebean setup code or when building an automated/semi-automated migration.
+
+---
+
+## Preferred pattern
+
+Prefer code shaped like this:
+
+```java
+Database database = Database.builder()
+  .name("db")
+  .loadFromProperties()
+  .dataSourceBuilder(dataSource)
+  .register(true)
+  .defaultDatabase(true)
+  .build();
+```
+
+The important points are:
+
+1. Start with `Database.builder()`
+2. Configure via `DatabaseBuilder`
+3. Finish with `.build()`
+
+---
+
+## Step 1 — Replace `new DatabaseConfig()` with `Database.builder()`
+
+### Before
+
+```java
+DatabaseConfig config = new DatabaseConfig();
+config.setName("db");
+config.loadFromProperties();
+```
+
+### After
+
+```java
+DatabaseBuilder config = Database.builder()
+  .name("db")
+  .loadFromProperties();
+```
+
+### Notes
+
+- Prefer the `DatabaseBuilder` type for local variables and parameters when possible.
+- If existing code only uses standard builder methods, this change is usually mechanical.
+- If existing code later reads configuration back, use `config.settings()`.
+
+---
+
+## Step 2 — Replace `DatabaseFactory.create(config)` with `config.build()`
+
+### Before
+
+```java
+DatabaseConfig config = new DatabaseConfig();
+config.setName("db");
+config.loadFromProperties();
+Database database = DatabaseFactory.create(config);
+```
+
+### After
+
+```java
+DatabaseBuilder config = Database.builder()
+  .name("db")
+  .loadFromProperties();
+Database database = config.build();
+```
+
+### Short form
+
+```java
+Database database = Database.builder()
+  .name("db")
+  .loadFromProperties()
+  .build();
+```
+
+---
+
+## Step 3 — Replace `DatabaseFactory.create("name")`
+
+### Before
+
+```java
+Database database = DatabaseFactory.create("other");
+```
+
+### After
+
+```java
+Database database = Database.builder()
+  .name("other")
+  .loadFromProperties()
+  .build();
+```
+
+### Important
+
+For **named databases**, set `.name("...")` before `.loadFromProperties()` so the named configuration is loaded.
+
+---
+
+## Step 4 — Replace legacy `setXxx(...)` methods with fluent builder methods
+
+`DatabaseBuilder` already exposes preferred fluent names for most configuration methods.
+Use those names when migrating older setup code.
+
+| Legacy call | Preferred call |
+|---|---|
+| `setName("db")` | `name("db")` |
+| `setRegister(false)` | `register(false)` |
+| `setDefaultServer(false)` | `defaultDatabase(false)` |
+| `setContainerConfig(cfg)` | `containerConfig(cfg)` |
+| `setDbSchema("app")` | `dbSchema("app")` |
+| `setDataSourceConfig(ds)` | `dataSourceBuilder(ds)` |
+| `setReadOnlyDataSourceConfig(ro)` | `readOnlyDataSourceBuilder(ro)` |
+| `setRunMigration(true)` | `runMigration(true)` |
+| `setDisableClasspathSearch(true)` | `disableClasspathSearch(true)` |
+| `setPersistBatch(batch)` | `persistBatch(batch)` |
+
+### Full example
+
+#### Before
+
+```java
+DatabaseConfig config = new DatabaseConfig();
+config.setName("db");
+config.setRegister(false);
+config.setDefaultServer(false);
+config.setDataSourceConfig(dataSource);
+Database database = DatabaseFactory.create(config);
+```
+
+#### After
+
+```java
+Database database = Database.builder()
+  .name("db")
+  .register(false)
+  .defaultDatabase(false)
+  .dataSourceBuilder(dataSource)
+  .build();
+```
+
+---
+
+## Step 5 — Verify semantics after migration
+
+The migration should preserve behavior, but verify these points:
+
+- `register(true)` is still the default
+- `defaultDatabase(true)` is still the default
+- call `loadFromProperties()` if the old code loaded configuration from properties
+- for named databases, set the name before loading properties
+- explicit entity registration via `addClass(...)` / `addAll(...)` is unchanged
+- custom datasource wiring via `dataSourceBuilder(...)` and `readOnlyDataSourceBuilder(...)` is unchanged
+
+---
+
+## Manual-review cases
+
+These cases are **not** simple search-and-replace migrations and should be reviewed manually:
+
+### `DatabaseFactory.createWithContextClassLoader(...)`
+
+There is no direct builder shorthand for this today. Keep this as-is for now and migrate the surrounding builder configuration first.
+
+### `DatabaseFactory.initialiseContainer(...)`
+
+This is a container lifecycle concern, not a normal database-builder call. Keep it as-is unless you are intentionally moving the `ContainerConfig` onto the first builder via `containerConfig(...)`.
+
+### `DatabaseFactory.shutdown()`
+
+This is also a lifecycle concern rather than normal builder setup. Leave it alone unless you are making a deliberate lifecycle change.
+
+### Variables or method signatures typed as `DatabaseConfig`
+
+If the code only uses standard builder operations, switch the type to `DatabaseBuilder`.
+If the code depends on implementation-specific `DatabaseConfig` methods, review it manually.
+
+### Code that needs read access to builder settings
+
+Use:
+
+```java
+DatabaseBuilder builder = Database.builder();
+DatabaseBuilder.Settings settings = builder.settings();
+```
+
+rather than relying on the concrete `DatabaseConfig` type only to read getters.
+
+---
+
+## Automation notes for AI agents and bulk refactors
+
+This migration is a good candidate for semi-automated upgrading.
+
+### Safe mechanical rewrites
+
+These are usually safe to rewrite automatically:
+
+- `new DatabaseConfig()` → `Database.builder()`
+- `DatabaseFactory.create(builder)` → `builder.build()`
+- `DatabaseFactory.create("name")` → `Database.builder().name("name").loadFromProperties().build()`
+- legacy `setXxx(...)` calls → preferred fluent builder methods
+
+### Flag for manual review
+
+Automatically flag, but do not blindly rewrite:
+
+- `DatabaseFactory.createWithContextClassLoader(...)`
+- `DatabaseFactory.initialiseContainer(...)`
+- `DatabaseFactory.shutdown()`
+- parameters, fields, or return types declared as `DatabaseConfig`
+- any use that clearly depends on `DatabaseConfig` implementation details rather than `DatabaseBuilder`
+
+---
+
+## Related guides
+
+- [Database configuration](add-ebean-postgres-database-config.md) — preferred modern setup style using `Database.builder()`
+- [Guide index](README.md) — full list of Ebean setup and migration guides
@@ -0,0 +1,464 @@
+# Guide: Using `RawSql` with Ebean
+
+## Purpose
+
+`RawSql` lets you back an Ebean bean with a **hand-written SQL query** instead of
+Ebean generating the SQL from the entity mapping. Ebean still handles object
+mapping (result set columns → bean properties), lazy loading of associated beans,
+and - depending on how the `RawSql` is built - dynamic `WHERE`/`HAVING` predicates
+added through the normal query API.
+
+Use this guide when you need to:
+
+- run vendor-specific SQL, complex aggregation, or reporting queries that don't
+  map cleanly to an ORM query
+- reuse a hand-tuned query but still want typed/dynamic predicates, paging, or
+  `ORDER BY` added by the caller
+- back a query bean (`Q*`) or DTO-like bean with SQL containing a CTE, window
+  function, or subquery in the `FROM` clause
+
+Prefer ordinary query bean queries first - see
+[Write Ebean queries with query beans](writing-ebean-query-beans.md), Step 9,
+for the full decision order (query bean → `asDto()` → DTO query → raw SQL).
+This guide covers raw SQL once you've decided it's the right tool.
+
+---
+
+## The bean behind a `RawSql` query
+
+A bean queried with `RawSql` is not necessarily backed by a physical table. Annotate
+it `@Entity @Sql` to tell Ebean it is mapped via `RawSql` rather than table DDL:
+
+```java
+@Entity
+@Sql
+public class OrderAggregate {
+
+  @OneToOne
+  Order order;
+
+  Double totalAmount;
+  Long totalItems;
+
+  // getters/setters
+}
+```
+
+`@Sql` beans still get a generated query bean (`QOrderAggregate`) if the
+querybean-generator annotation processor is configured - see
+[Using `RawSql` with query beans](#using-rawsql-with-query-beans) below.
+
+You can also query an ordinary table-backed `@Entity` with `RawSql` - the column
+mapping just needs to line up with that entity's properties.
+
+---
+
+## Building a `RawSql` - three factory methods
+
+`RawSqlBuilder` has three ways to construct a `RawSql`, depending on how much of
+the SQL Ebean needs to understand:
+
+| Method | SELECT columns parsed? | Dynamic WHERE/HAVING/ORDER BY? | Use for |
+|--------|------------------------|------------------------|---------|
+| `RawSqlBuilder.parse(sql)` | Yes | Yes | Ordinary `SELECT ... FROM ... WHERE ...` statements |
+| `RawSqlBuilder.unparsed(sql)` | No | No | Fixed SQL that never needs additional predicates |
+| `RawSqlBuilder.withPlaceholders(sql)` | No (explicit `columnMapping()` required) | Yes, via `${where}` / `${andWhere}` / `${having}` / `${andHaving}` / `${orderBy}` / `${andOrderBy}` | CTEs, window functions, subqueries - SQL that keyword-based parsing can't handle |
+
+### `parse(sql)` - the common case
+
+`parse(sql)` scans the SQL text for the `select` / `from` / `where` / `group by`
+/ `having` / `order by` keywords to work out the SELECT column list (so it can
+validate your column mappings) and the injection points for dynamic `WHERE`/
+`HAVING` expressions.
+
+```java
+RawSql rawSql = RawSqlBuilder.parse(
+    "select c.id, c.name, c.status from customer c")
+  .columnMapping("c.id", "id")
+  .columnMapping("c.name", "name")
+  .columnMapping("c.status", "status")
+  .create();
+
+List<Customer> customers = DB.find(Customer.class)
+  .setRawSql(rawSql)
+  .where().eq("status", Customer.Status.ACTIVE)
+  .orderBy("name")
+  .findList();
+```
+
+Because the SQL is parsed, mistakes in `columnMapping()` (unknown column, wrong
+order for `unparsed`-style mappings) are caught early. **This fails on SQL the
+keyword parser can't make sense of** - a `WITH` CTE, a window function, a
+subquery in `FROM`, etc. - because the keyword positions found don't correspond
+to the outer query's real structure. Use `withPlaceholders(sql)` for that SQL
+instead (see below).
+
+### `unparsed(sql)` - fixed queries
+
+`unparsed(sql)` skips all parsing. The SQL is used exactly as written, and **no
+further `WHERE`/`HAVING`/`ORDER BY` can be added** by the caller - useful for a
+completely fixed reporting query with no caller-supplied filtering.
+
+```java
+RawSql rawSql = RawSqlBuilder.unparsed(
+    "select id, name, status from customer where status = 'ACTIVE'")
+  .columnMapping("id", "id")
+  .columnMapping("name", "name")
+  .columnMapping("status", "status")
+  .create();
+
+List<Customer> customers = DB.find(Customer.class)
+  .setRawSql(rawSql)
+  .findList();
+```
+
+Column mappings for `unparsed(sql)` must be supplied **in the same order** as
+the columns appear in the SQL, since there's no parsing to match them by name.
+
+### `withPlaceholders(sql)` - complex SQL (CTEs, window functions, subqueries)
+
+`withPlaceholders(sql)` avoids keyword scanning entirely. You mark exactly where
+a dynamic `WHERE`/`HAVING`/`ORDER BY` expression should be injected using
+placeholder tokens, and column mappings are always explicit (as with `unparsed`).
+
+#### Placeholder reference
+
+| Placeholder | Meaning | Use when |
+|-------------|---------|----------|
+| `${where}` | Insert a new `WHERE <expr>` clause here | No static `WHERE` clause exists yet at this point in the SQL |
+| `${andWhere}` | Insert `AND <expr>` here | A static `WHERE ...` clause already exists in the SQL and you want to append to it |
+| `${having}` | Insert a new `HAVING <expr>` clause here | No static `HAVING` clause exists yet at this point in the SQL |
+| `${andHaving}` | Insert `AND <expr>` here | A static `HAVING ...` clause already exists in the SQL and you want to append to it |
+| `${orderBy}` | Insert a new `ORDER BY <expr>` clause here | No static `ORDER BY` clause exists yet at this point in the SQL, and callers may supply `.orderBy(...)` |
+| `${andOrderBy}` | Insert `, <expr>` here | A static `ORDER BY ...` clause already exists in the SQL and you want callers to be able to append extra sort columns to it |
+
+Rules:
+
+- At least one placeholder is required - `withPlaceholders(sql)` throws
+  `IllegalArgumentException` if none of the six tokens are present.
+- Use only the placeholders you need. Omit `${where}`/`${andWhere}` entirely if
+  the query never needs a dynamic `WHERE` (e.g. only a dynamic `HAVING` on an
+  aggregate). Omit `${having}`/`${andHaving}` if there's no dynamic `HAVING`.
+  Omit `${orderBy}`/`${andOrderBy}` if the ordering is always fixed.
+- Explicit `columnMapping()` is required for every returned column - there is no
+  column-list parsing to infer names from.
+- **A caller-supplied `.orderBy(...)`/`.order(...)` is only applied if the SQL
+  contains an `${orderBy}` or `${andOrderBy}` placeholder.** Without one of
+  those placeholders there is no defined injection point for dynamic ordering,
+  so any `.orderBy(...)` call on the query is safely ignored rather than risk
+  producing invalid SQL - even if the template has a static trailing
+  `ORDER BY ...` of its own. If you need callers to be able to influence
+  ordering, add `${orderBy}` (no existing static order by) or `${andOrderBy}`
+  (append after an existing static order by).
+- Any other static SQL that follows a `${where}`/`${having}` placeholder (e.g.
+  a trailing `GROUP BY`) is preserved and correctly positioned **after**
+  whatever dynamic expression gets injected at that placeholder.
+
+#### Example - CTE with `${where}`
+
+```java
+String sql = """
+  with order_totals as (
+    select o.id as order_id, sum(d.qty * d.unit_price) as total_amount
+    from o_order o
+    join o_order_detail d on d.order_id = o.id
+    group by o.id
+  )
+  select order_id, total_amount
+  from order_totals
+  ${where}
+  order by order_id
+  """;
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .where().gt("totalAmount", 100)
+  .findList();
+```
+
+`total_amount` is a genuine column of the `order_totals` CTE here, so it's valid
+to filter on it in the outer `WHERE` - this only works because the aggregate is
+computed inside the CTE rather than as a same-level `SELECT` alias.
+
+#### Example - static `WHERE` already present, append with `${andWhere}`
+
+```java
+String sql = "... from order_totals where total_amount > 0 ${andWhere} order by order_id";
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+// executed SQL: ... where total_amount > 0 and total_amount > ? order by order_id
+DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .where().gt("totalAmount", 100)
+  .findList();
+```
+
+#### Example - `${having}` only, filtering on an aggregate directly
+
+No `WHERE` placeholder is needed if you only ever filter on the aggregate value:
+
+```java
+String sql =
+  "select o.id as order_id, sum(d.qty * d.unit_price) as total_amount" +
+  " from o_order o join o_order_detail d on d.order_id = o.id" +
+  " group by o.id" +
+  " ${having}" +
+  " order by order_id";
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .having().gt("totalAmount", 100)
+  .findList();
+```
+
+The dynamic `HAVING` clause is injected before the static trailing `ORDER BY`,
+even though `${having}` is the only placeholder present. Because there's no
+`${orderBy}`/`${andOrderBy}` placeholder here, a caller-supplied `.orderBy(...)`
+would be ignored - the ordering stays fixed as `order by order_id`.
+
+#### Example - both `${where}` and `${having}`
+
+```java
+String sql =
+  "select o.id as order_id, sum(d.qty * d.unit_price) as total_amount" +
+  " from o_order o join o_order_detail d on d.order_id = o.id" +
+  " ${where}" +
+  " group by o.id" +
+  " ${having}" +
+  " order by order_id";
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .where().gt("order.id", 0)
+  .having().gt("totalAmount", 50)
+  .findList();
+```
+
+Both the dynamic `WHERE` and dynamic `HAVING` are injected at their respective
+placeholders, and the trailing `order by order_id` is preserved after the
+`HAVING` clause.
+
+#### Example - `${orderBy}`, fully dynamic ordering
+
+Use `${orderBy}` when there's no static default ordering and you want the
+caller's `.orderBy(...)` to control it entirely:
+
+```java
+String sql =
+  "with order_totals as (" +
+  "  select o.id as order_id, sum(d.qty * d.unit_price) as total_amount" +
+  "  from o_order o join o_order_detail d on d.order_id = o.id" +
+  "  group by o.id" +
+  ")" +
+  " select order_id, total_amount from order_totals" +
+  " ${where}" +
+  " ${orderBy}";
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+// executed SQL: ... where total_amount > ? order by total_amount desc
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .where().gt("totalAmount", 0)
+  .orderBy("totalAmount desc")
+  .findList();
+```
+
+If the caller doesn't call `.orderBy(...)`, nothing is injected at `${orderBy}`
+and no `ORDER BY` clause is emitted at all.
+
+#### Example - `${andOrderBy}`, appending to a static default ordering
+
+Use `${andOrderBy}` when there's a sensible static default ordering but you
+want callers to be able to add extra tie-breaker sort columns:
+
+```java
+String sql =
+  "... from order_totals" +
+  " ${where}" +
+  " order by total_amount desc ${andOrderBy}";
+
+RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+  .columnMapping("order_id", "order.id")
+  .columnMapping("total_amount", "totalAmount")
+  .create();
+
+// executed SQL: ... order by total_amount desc , order_id
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)
+  .where().gt("totalAmount", 0)
+  .orderBy("order.id")
+  .findList();
+```
+
+---
+
+## Using `fetchQuery()` to build out more of the graph
+
+A `RawSql` query can be the **root query** and still use `fetchQuery(path)` the
+same way an ordinary ORM query does - Ebean runs the raw SQL for the root rows,
+then runs additional secondary ORM queries to populate the requested paths. This
+lets you hand-write only the part of the query that needs raw SQL (e.g. an
+aggregate/CTE) and let the ORM build out the rest of the object graph normally.
+
+```java
+List<OrderAggregate> list = DB.find(OrderAggregate.class)
+  .setRawSql(rawSql)           // root query - runs the CTE/aggregate SQL
+  .fetchQuery("order")         // secondary query - loads the full Order
+  .fetchQuery("order.details") // secondary query - loads Order.details
+  .where().gt("totalAmount", 50)
+  .findList();
+```
+
+This executes **three** queries: the raw SQL root query, then one secondary
+query per `fetchQuery(path)` call.
+
+**Important**: if the raw SQL's column mapping only populates part of an
+association (e.g. only `order.id`, as in the examples above), that association
+is a *partial reference*. To load a nested to-many under it (e.g.
+`order.details`), you must add an explicit `fetchQuery(...)` (or `fetch(...)`)
+for the **intermediate path** (`order`) as well as the nested path
+(`order.details`) - `fetchQuery("order.details")` alone will leave `details` as
+a deferred/lazy collection, because Ebean doesn't otherwise have a fetch node
+for `order` to hang the secondary query off. If the raw SQL already selects the
+full set of columns for an association directly (no partial reference), this
+extra step isn't needed.
+
+This is the same `fetchQuery()` mechanism used for ordinary query bean queries -
+see [Use `fetchQuery()` for to-many paths](writing-ebean-query-beans.md#step-7---use-fetchquery-for-to-many-paths-and-fetchgroup-for-reusable-query-shapes)
+for background on why to-many paths are loaded via secondary queries rather than
+a single joined query.
+
+---
+
+## Column mapping
+
+Every `RawSqlBuilder` (except a bare `unparsed(sql)` with implicit positional
+mapping) uses `columnMapping(dbColumn, propertyName)` to map SQL result columns
+to bean properties:
+
+```java
+.columnMapping("order_id", "order.id")   // maps to the "order" association's "id" property
+.columnMapping("total_amount", "totalAmount")
+```
+
+- Dotted property paths (e.g. `"order.id"`) map a column into a nested/associated
+  bean property.
+- `columnMappingIgnore(dbColumn)` marks a selected column as intentionally unmapped
+  (present in the SQL but not needed on the bean).
+- `tableAliasMapping(tableAlias, path)` bulk-renames every mapping using a given
+  SQL table alias to be prefixed with a bean property path - handy when a `parse()`
+  query selects many columns from a joined table (e.g. alias `c` → path `customer`)
+  and you don't want to repeat the prefix in every `columnMapping()` call.
+
+---
+
+## Using `RawSql` with query beans
+
+`RawSql` is not limited to the plain `Query<T>` API - it also works with a
+generated query bean, giving type-safe `where()`/`having()`-equivalent
+expressions (as bean properties) over hand-written SQL. Every generated query
+bean exposes `setRawSql(...)`:
+
+```java
+RawSql rawSql = RawSqlBuilder.parse("select id, name, status from customer")
+  .columnMapping("id", "id")
+  .columnMapping("name", "name")
+  .columnMapping("status", "status")
+  .create();
+
+List<Customer> customers = new QCustomer()
+  .setRawSql(rawSql)
+  .status.equalTo(Customer.Status.ACTIVE) // typed expression, injected into the parsed WHERE clause
+  .findList();
+```
+
+This also works with `withPlaceholders(sql)` and an `@Sql` query bean:
+
+```java
+List<OrderAggregate> list = new QOrderAggregate()
+  .setRawSql(rawSql) // built with withPlaceholders() as shown above
+  .totalAmount.gt(100)
+  .findList();
+```
+
+The typed property expression (`.totalAmount.gt(100)`) is translated to a bound
+predicate and injected at the `${where}`/`${having}` placeholder position, exactly
+as `.where().gt("totalAmount", 100)` would be on the plain `Query<T>` API.
+
+---
+
+## Common anti-patterns
+
+### Anti-pattern 1 - reaching for raw SQL before trying a query bean
+
+Complex-looking joins are often just ordinary association traversal in a query
+bean. Don't use raw SQL just because a query touches several tables - see
+[Write Ebean queries with query beans](writing-ebean-query-beans.md).
+
+### Anti-pattern 2 - using `parse(sql)` on a CTE or window-function query
+
+`parse(sql)` will throw a parsing exception (or silently mis-locate the WHERE
+injection point) on SQL it can't understand structurally. If your SQL starts
+with `WITH ...` or has a subquery in `FROM`, use `withPlaceholders(sql)` instead.
+
+### Anti-pattern 3 - filtering on a same-level SELECT alias
+
+You cannot add a dynamic `WHERE` predicate on a `SELECT`-clause alias in the
+same query level (e.g. `select sum(x) as total ... ${where}` - `total` isn't a
+real column yet at the `WHERE` stage of that query level). Either:
+
+- move the aggregation into a CTE and filter on the CTE's output column in the
+  outer query (`WHERE` case), or
+- use `${having}`/`${andHaving}` to filter on the aggregate at the `HAVING` stage
+  of the same query level, where the aggregate expression is valid.
+
+### Anti-pattern 4 - forgetting `columnMapping()` with `unparsed()`/`withPlaceholders()`
+
+Both `unparsed(sql)` and `withPlaceholders(sql)` require **every** returned
+column to be explicitly mapped (or explicitly ignored via
+`columnMappingIgnore(...)`) - there's no column-list parsing to infer them.
+
+---
+
+## Troubleshooting
+
+| Symptom | Likely cause | Fix |
+|---------|--------------|-----|
+| `RuntimeException: Error parsing sql, can not find ... keyword` | `parse(sql)` used on SQL with a CTE, window function, or subquery in `FROM` | Use `RawSqlBuilder.withPlaceholders(sql)` instead |
+| `IllegalArgumentException: withPlaceholders() requires at least one of ${where}, ${andWhere}, ${having}, ${andHaving}, ${orderBy}, ${andOrderBy}...` | None of the six placeholder tokens were found in the SQL | Add the appropriate placeholder token at the injection point |
+| Dynamic `WHERE`/`HAVING` predicate silently has no effect, or query throws | Used `unparsed(sql)` and then tried to add a predicate | `unparsed(sql)` queries cannot be modified - switch to `parse(sql)` or `withPlaceholders(sql)` |
+| Generated SQL is invalid / clauses appear in the wrong order | Predicates added via `.where()`/`.having()` don't match the placeholders actually present in the SQL | Make sure `${where}`/`${having}` (or the `and` variants) exist at the point you expect predicates to be injected |
+| `.orderBy(...)`/`.order(...)` on the query silently has no effect | The SQL has no `${orderBy}`/`${andOrderBy}` placeholder | This is by design - without one of those placeholders there's no defined injection point, so the ordering is ignored rather than corrupting the SQL. Add `${orderBy}` or `${andOrderBy}` if you need caller-controlled ordering |
+| `Unknown column` / unmapped property error | Missing `columnMapping()` for a selected column | Add a `columnMapping(...)` or `columnMappingIgnore(...)` for every SQL column |
+| `fetchQuery("a.b")` collection stays deferred/lazy | `a` is a partial reference from the raw SQL column mapping (e.g. only `a.id` mapped), and there's no fetch node for `a` itself | Add `fetchQuery("a")` (or `fetch("a")`) alongside `fetchQuery("a.b")` |
+
+---
+
+## Related documentation
+
+- [Write Ebean queries with query beans](writing-ebean-query-beans.md)
+- [Derived / formula properties (`@Formula`, `@Formula2`)](derived-formula-properties.md)
+- [Ebean query docs](https://ebean.io/docs/query/)
@@ -77,6 +77,7 @@ often the right query shape.
 | Check if at least one row exists | `exists()` | Cheapest choice for boolean existence checks |
 | Load exactly one row by ID or unique key | `findOne()` | Only use when the predicate is truly unique |
 | Load a list of entity beans | `findList()` | Default for list screens and domain logic |
+| Stream rows, usually to map into another type | `findStream()` | For large/unbounded results streamed from the JDBC cursor; close via try-with-resources. For small/bounded results prefer `findList().stream()` |
 | Count matching rows | `findCount()` | Prefer over loading entities just to count |
 | Load a page plus optional total row count | `findPagedList()` | Use when the caller needs pagination metadata |
 | Return DTO/read-model rows | `asDto(...).findList()` | Prefer this over partially loaded entities for API/view models |
@@ -99,6 +100,43 @@ Customer customer = new QCustomer()

 Do **not** use `findOne()` for predicates that can match multiple rows.

+### Example - stream and map to another type
+
+Choose based on result size and how you consume it:
+
+- **`findList().stream()`** — executes the query, materialises the rows,
+  **releases the connection**, then streams over an in-memory list. No open
+  database resources and no try-with-resources needed. Prefer this for small or
+  bounded results (e.g. when you apply `setMaxRows`) that you collect anyway.
+- **`findStream()`** — streams rows directly from the JDBC cursor, holding a
+  connection (and an implicit transaction) open for the **whole lifetime of the
+  stream pipeline**. It must be closed with try-with-resources. Prefer it when
+  the result may be large, when you want constant memory, or when you want to
+  short-circuit (`limit`, `findFirst`, `takeWhile`) without loading everything.
+
+```java
+// small, bounded result fully collected -> findList().stream()
+List<PendingPlan> pending = new QCaptureRequest()
+  .collectedAt.isNull()
+  .orderBy().requestedAt.asc()
+  .findList()
+  .stream()
+  .map(r -> new PendingPlan(r.app().getName(), r.hash()))
+  .toList();
+
+// large/unbounded result streamed from the cursor -> findStream() + try-with-resources
+try (Stream<Customer> stream = new QCustomer()
+  .status.equalTo(Status.NEW)
+  .findStream()) {
+  stream
+    .map(...)
+    .forEach(...);
+}
+```
+
+For processing large results one bean at a time, `findEach()` is often the
+simplest choice because it closes the underlying resources automatically.
+
 ---

 ## Step 3 - Build predicates by traversing properties and associations
@@ -131,6 +169,49 @@ List<Customer> customers = new QCustomer()
  .findList();
 ```

+### Optional predicates - prefer conditional helpers over `if` blocks
+
+When a filter is driven by a nullable/optional parameter, use the built-in
+conditional helpers instead of wrapping predicates in `if` blocks. The query
+stays fluent and reads top-to-bottom, and no predicate is added when the value
+is absent.
+
+| Helper | Adds predicate when | Resulting SQL |
+|--------|---------------------|---------------|
+| `eqIfPresent(v)` | `v != null` | `prop = ?` |
+| `eqIfNotBlank(v)` (String) | `v` non-null and not blank (value is trimmed) | `prop = ?` |
+| `eqOrNull(v)` | always | `(prop = ? or prop is null)` |
+| `inOrEmpty(coll)` | `coll` non-empty | `prop in (...)` (no predicate when empty) |
+| `likeIfPresent` / `ilikeIfPresent` / `startsWithIfPresent` / `istartsWithIfPresent` / `containsIfPresent` / `icontainsIfPresent` (String) | `v != null` | the match expression |
+
+```java
+// Instead of building the query with if blocks:
+QCustomer q = new QCustomer();
+if (name != null && !name.isBlank()) {
+  q.name.eq(name.trim());
+}
+if (status != null) {
+  q.status.eq(status);
+}
+List<Customer> customers = q.findList();
+
+// Prefer the conditional helpers:
+List<Customer> customers = new QCustomer()
+  .name.eqIfNotBlank(name)
+  .status.eqIfPresent(status)
+  .findList();
+```
+
+Use `eqOrNull(v)` when a null column value should also match - for example an
+"any environment" row stored with `env_id is null` should surface under any env
+filter - instead of a hand-rolled `or()/eq()/isNull()/endOr()` block:
+
+```java
+List<CaptureRequest> rows = new QCaptureRequest()
+  .env.name.eqOrNull(envFilter)   // env_name = ? or env_name is null
+  .findList();
+```
+
 ### Agent rule

 When adding a new query:
@@ -140,6 +221,10 @@ When adding a new query:
 3. Traverse relationships instead of writing manual join SQL
 4. Keep property references type-safe; avoid string property names unless the API
   specifically requires them
+5. For optional filters, reach for `eqIfPresent` / `eqIfNotBlank` / `inOrEmpty`
+   before writing an `if (param != null)` block, and use `eqOrNull` instead of a
+   manual `or()/eq()/isNull()/endOr()` when the intent is "match this value or a
+   null column"

 ---

@@ -398,6 +483,30 @@ Prefer the following order:
 Do **not** jump to raw SQL just because the query joins multiple tables. Query
 beans already handle ordinary relationship traversal well.

+### Using `RawSql` with query beans
+
+`RawSql` is not limited to the plain `Query<T>` API - it also works with a
+generated query bean, giving type-safe `where()`/`having()` expressions over
+hand-written SQL. Every generated query bean exposes `setRawSql(...)`:
+
+```java
+RawSql rawSql = RawSqlBuilder.parse("select id, name, status from customer")
+  .columnMapping("id", "id")
+  .columnMapping("name", "name")
+  .columnMapping("status", "status")
+  .create();
+
+List<Customer> customers = new QCustomer()
+  .setRawSql(rawSql)
+  .status.equalTo(Customer.Status.ACTIVE) // typed expression, injected into the parsed WHERE clause
+  .findList();
+```
+
+For the full guide to building `RawSql` - including `unparsed()`,
+`withPlaceholders()` for CTEs/window functions, the `${where}` / `${andWhere}`
+/ `${having}` / `${andHaving}` placeholder reference, and column mapping - see
+[Using `RawSql` with Ebean](using-rawsql-with-ebean.md).
+
 ---

 ## Common anti-patterns
@@ -485,4 +594,5 @@ When asked to add or modify an Ebean query:
 - [Add Ebean Postgres Maven POM](add-ebean-postgres-maven-pom.md)
 - [Entity Bean Creation](entity-bean-creation.md)
 - [Immutable bean cache for read-only references](immutable-bean-cache.md)
+- [Using `RawSql` with Ebean](using-rawsql-with-ebean.md)
 - [Ebean query docs](https://ebean.io/docs/query/)
@@ -0,0 +1,333 @@
+# Immutable Bean Cache — notes on multi-level / remote caching
+
+These notes capture design thoughts for a possible future multi-level immutable bean cache,
+where immutable beans may be cached remotely (for example Redis or a Postgres cache table)
+in addition to an in-JVM cache.
+
+## Current important constraint
+
+`AssocOneHelp.read()` now uses `ImmutableBeanCache.getIfPresent(id)` as a direct-hit fast path.
+
+That means:
+
+- `getIfPresent(id)` is on the **row read hot path**
+- it must remain **cheap and local**
+- it should **not** perform network I/O
+- it should **not** deserialize remote payloads
+- it should **not** trigger loading or record misses
+
+## Strong recommendation
+
+For any multi-level cache design:
+
+- **L1 cache** = in-JVM cache of already materialized immutable beans
+- **L2 cache** = remote/shared cache of serialized immutable snapshots
+- **Loader** = Ebean query using the configured fetch group
+
+With that split:
+
+- `getIfPresent(id)` => **L1 only**
+- `getAll(ids)` => batch through **L1 -> L2 -> loader**
+
+This preserves the `AssocOneHelp` fast path.
+
+---
+
+## Snapshot mindset
+
+Remote cache entries should be treated as **immutable snapshots**, not just arbitrary beans.
+
+A cached value is specific to:
+
+- bean type
+- bean id
+- tenant (if multi-tenant)
+- fetch-group / cache identity
+- serializer/schema version
+
+This matters because a `Customer` cached with:
+
+- `select("name,version")`
+
+is not equivalent to a `Customer` cached with:
+
+- `select("name,version").fetch("billingAddress", "line1,city")`
+
+## Key design recommendation
+
+Remote keys should include at least:
+
+- bean type
+- bean id
+- tenant id (if applicable)
+- cache/fetch-group identity
+- optionally serializer/schema version
+
+Example shape:
+
+- `immutable:Customer:basic:42`
+- `immutable:Customer:withAddresses:42`
+
+---
+
+## Recommended multi-level flow
+
+### L1
+
+Store actual read-only `EntityBean` instances.
+
+Responsibilities:
+
+- support `getIfPresent(id)`
+- avoid repeated deserialize cost
+- avoid network calls on row read path
+
+### L2
+
+Store serialized immutable snapshots.
+
+Responsibilities:
+
+- batch lookup only
+- support cross-JVM sharing
+- feed L1 with materialized immutable beans
+
+### Loader
+
+Use the existing query/fetch-group-based loader for misses.
+
+### Suggested `getAll(ids)` flow
+
+1. Check L1
+2. Batch remaining ids to L2
+3. Deserialize L2 hits into read-only beans
+4. Put those beans into L1
+5. Batch remaining misses to DB loader
+6. Freeze / ensure read-only beans
+7. Write through to L2
+8. Put into L1
+9. Negative-cache true misses if desired
+
+---
+
+## Invalidation is more important than serialization
+
+Things to think about:
+
+- update/delete invalidation across JVMs
+- local L1 invalidation when L2 entry is removed
+- ordering relative to DB commit
+- multiple cache instances for the same bean type but different fetch groups
+- tenant-scoped invalidation
+
+Recommended direction:
+
+- keep current immutable-cache invalidation semantics
+- add a remote invalidation/event mechanism for L2-backed caches
+- each JVM should evict affected L1 entries when notified
+
+Examples:
+
+- Redis: pub/sub or streams
+- Postgres cache table: NOTIFY/listen, polling, or invalidation table/outbox pattern
+
+---
+
+## Serialization format considerations
+
+## JSON
+
+### Pros
+
+- human readable / debuggable
+- easier rolling upgrades
+- field-name based, so generally more tolerant of schema evolution
+- good fit for Redis strings or Postgres JSONB
+- easier operational debugging
+
+### Cons
+
+- larger payloads
+- more CPU to serialize/deserialize
+- nested graphs / enums / dates / inheritance need disciplined handling
+
+## Kryo / generic binary serialization
+
+### Pros
+
+- smaller payloads
+- often faster than JSON
+- can preserve object graphs efficiently
+
+### Cons
+
+- more fragile across versions and rolling deploys
+- class registration / compatibility pain
+- harder to inspect/debug
+- tighter coupling to JVM/class layout
+- riskier for long-lived shared cache entries
+
+## Recommendation
+
+For a first remote/shared implementation:
+
+- prefer **JSON** or another self-describing structured format
+- if a binary format is later needed, prefer a stable schema-based format over generic object-graph serialization
+- **do not start with Kryo** unless short-lived entries and tight deployment coordination are acceptable
+
+---
+
+## What to serialize
+
+Avoid thinking in terms of serializing arbitrary live entity bean graphs directly.
+
+A cleaner model is:
+
+- serialize a **snapshot representation**
+- deserialize into a fresh entity bean
+- mark loaded properties appropriately
+- freeze / ensure read-only state
+- store the resulting materialized bean in L1
+
+This gives more control over:
+
+- loaded-property semantics
+- read-only state
+- subtype handling
+- schema/version evolution
+
+## Practical recommendation
+
+Remote cache entries should represent exactly the configured fetch-group snapshot.
+
+That means:
+
+- cache what the fetch group loaded
+- include nested associations loaded by that fetch group
+- treat it as a self-contained immutable snapshot
+
+This is simpler than trying to normalize the graph into many remote cache fragments and re-link it later.
+
+---
+
+## Redis vs Postgres cache table
+
+## Redis
+
+### Good for
+
+- low latency
+- batch lookup via MGET / pipelining
+- TTL/eviction support
+- natural shared-cache use case
+
+### Tradeoffs
+
+- extra infrastructure
+- memory cost
+- invalidation/event coordination still required
+
+## Postgres cache table (including unlogged-style approach)
+
+### Good for
+
+- simpler ops if Postgres is already present
+- easy batch lookup with `IN (...)`
+- fewer moving parts than introducing Redis
+
+### Tradeoffs
+
+- slower than Redis for hot shared-cache usage
+- adds pressure to Postgres
+- TTL/cleanup becomes application responsibility
+- still network/database I/O, so should remain off the `getIfPresent()` hot path
+
+## Recommendation
+
+- if the goal is a serious shared L2 cache, Redis is the more natural fit
+- if the goal is pragmatic shared caching with minimal extra infrastructure, Postgres can work but should still be treated as L2-only
+
+---
+
+## Versioning / evolution
+
+Whatever serializer is used, include versioning information.
+
+Useful dimensions:
+
+- serializer/schema version
+- cache implementation version
+- fetch-group/cache identity version
+
+This helps when:
+
+- fields are added/removed
+- graph shape changes
+- fetch-group definitions evolve
+
+---
+
+## Compression
+
+If remote snapshots become large:
+
+- compress only above a size threshold
+- avoid compressing tiny payloads
+
+This is especially relevant for JSON in Redis or Postgres L2.
+
+---
+
+## Observability
+
+A multi-level cache should expose at least:
+
+- L1 hit rate
+- L2 hit rate
+- DB loader rate
+- deserialize failures
+- invalidation counts
+- average payload size
+- cold-start amplification
+
+Without this, it will be hard to judge whether the remote cache is helping.
+
+---
+
+## Overall recommended architecture
+
+### Recommended model
+
+- **L1**: actual read-only `EntityBean` instances
+- **L2**: serialized immutable snapshots
+- **Loader**: fetch-group-based DB query
+
+### Method responsibilities
+
+- `getIfPresent(id)` => **L1 only**
+- `getAll(ids)` => **L1 + L2 + DB loader** in batches
+
+This aligns well with the current `AssocOneHelp` optimization and keeps the row-read path fast.
+
+---
+
+## Bottom line
+
+If/when multi-level immutable caching is explored, the main points to preserve are:
+
+1. keep `getIfPresent()` local-only
+2. do remote work only in batched `getAll()`
+3. key by type + id + tenant + fetch-group/cache identity
+4. treat remote values as immutable snapshots
+5. prefer JSON/self-describing format first
+6. be cautious with generic binary serializers like Kryo
+
+---
+
+## Possible follow-up
+
+If this becomes active design work later, consider promoting these notes into one of:
+
+- a dedicated design note under `docs/notes/`
+- a GitHub issue / discussion for design iteration
+- a lightweight ADR if this becomes a committed architectural direction
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>

  <name>ebean api</name>
@@ -70,15 +70,13 @@
      <optional>true</optional>
    </dependency>

-    <!-- Jackson core used internally by Ebean -->
    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>${jackson.version}</version>
-      <optional>true</optional>
+      <groupId>io.avaje</groupId>
+      <artifactId>avaje-json-core</artifactId>
+      <version>${avaje-json-core.version}</version>
    </dependency>

-    <!-- provided scope for JsonNode support -->
+    <!-- Jackson databind remains for ObjectMapper compatibility paths -->
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
@@ -105,6 +103,53 @@
        </excludes>
      </resource>
    </resources>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <executions>
+          <execution>
+            <id>compile</id>
+            <goals>
+              <goal>compile</goal>
+            </goals>
+            <configuration>
+              <release>11</release>
+            </configuration>
+          </execution>
+          <execution>
+            <id>compile-21</id>
+            <phase>compile</phase>
+            <goals>
+              <goal>compile</goal>
+            </goals>
+            <configuration>
+              <release>21</release>
+              <compileSourceRoots>
+                <compileSourceRoot>${project.basedir}/src/main/java21</compileSourceRoot>
+              </compileSourceRoots>
+              <multiReleaseOutput>true</multiReleaseOutput>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <configuration>
+          <archive>
+            <addMavenDescriptor>false</addMavenDescriptor>
+            <manifestEntries>
+              <Multi-Release>true</Multi-Release>
+            </manifestEntries>
+          </archive>
+        </configuration>
+<!--          <manifest>-->
+<!--            <addDefaultImplementationEntries>true</addDefaultImplementationEntries>-->
+<!--          </manifest>-->
+
+      </plugin>
+    </plugins>
  </build>

 </project>
@@ -457,6 +457,10 @@ public final class DB {

  /**
   * Same as {@link #checkUniqueness(Object)} but with given transaction.
+   * <p>
+   * For control over query cache use and whether to skip the check when the bean's unique
+   * properties are unchanged, use {@link Database#checkUniqueness(Object, Transaction, boolean, boolean)}
+   * via {@link #getDefault()} instead.
   */
  public static Set<Property> checkUniqueness(Object bean, Transaction transaction) {
    return getDefault().checkUniqueness(bean, transaction);
@@ -23,11 +23,18 @@ import java.util.concurrent.Callable;
 /**
 * Provides the API for fetching and saving beans to a particular database.
 *
+ * <h5>Constructing a Database</h5>
+ * <p>
+ * Databases are typically constructed via {@link #builder()} and {@link DatabaseBuilder#build()}.
+ * They can also be automatically constructed on demand using configuration information in
+ * the application.properties file. The underlying implementation is provided by
+ * {@link DatabaseFactory}.
+ *
 * <h5>Registration with the DB singleton</h5>
 * <p>
- * When a Database instance is created it can be registered with the DB
- * singleton (see {@link DatabaseConfig#setRegister(boolean)}). The DB
- * singleton is essentially a map of Database's that have been registered
+ * When a Database instance is created it can be registered with the {@link DB}
+ * singleton (see {@link DatabaseBuilder#register(boolean)}). The {@link DB}
+ * singleton is essentially a map of {@link Database}'s that have been registered
 * with it.
 * <p>
 * The Database can then be retrieved later via {@link DB#byName(String)}.
@@ -35,16 +42,10 @@ import java.util.concurrent.Callable;
 * <h5>The 'default' Database</h5>
 * <p>
 * One Database can be designated as the 'default' or 'primary' Database
- * (see {@link DatabaseConfig#setDefaultServer(boolean)}). Many methods on DB
+ * (see {@link DatabaseBuilder#defaultDatabase(boolean)}). Many methods on {@link DB}
 * such as {@link DB#find(Class)} etc are actually just a convenient way to
 * call methods on the 'default/primary' Database.
 *
- * <h5>Constructing a Database</h5>
- * <p>
- * Databases are constructed by the DatabaseFactory. They can be created
- * programmatically via {@link DatabaseFactory#create(DatabaseBuilder)} or they
- * can be automatically constructed on demand using configuration information in
- * the application.properties file.
 *
 * <h5>Example: Get a Database</h5>
 * <pre>{@code
@@ -80,6 +81,7 @@ import java.util.concurrent.Callable;
 * method. Example: a single thread requires more than one transaction.
 *
 * @see DB
+ * @see DatabaseBuilder
 * @see DatabaseFactory
 * @see DatabaseConfig
 */
@@ -94,11 +96,13 @@ public interface Database {
   *   // from application.properties / application.yaml
   *
   *   Database db = Database.builder()
+   *     .name("db")
   *     .loadFromProperties()
   *     .build();
   *
   * }</pre>
   */
+  @SuppressWarnings("removal")
  static DatabaseBuilder builder() {
    return new DatabaseConfig();
  }
@@ -1074,12 +1078,21 @@ public interface Database {
   * @param bean The entity bean to check uniqueness on
   * @return a set of Properties if constraint validation was detected or empty list.
   */
-  Set<Property> checkUniqueness(Object bean);
+  default Set<Property> checkUniqueness(Object bean) {
+    return checkUniqueness(bean, null, false, true);
+  }

  /**
   * Same as {@link #checkUniqueness(Object)}. but with given transaction.
   */
-  Set<Property> checkUniqueness(Object bean, Transaction transaction);
+  default Set<Property> checkUniqueness(Object bean, Transaction transaction) {
+    return checkUniqueness(bean, transaction, false, true);
+  }
+
+  /**
+   * Same as {@link #checkUniqueness(Object)}. but with given transaction and extended search options.
+   */
+  Set<Property> checkUniqueness(Object bean, Transaction transaction, boolean useQueryCache, boolean skipClean);

  /**
   * Marks the entity bean as dirty.
@@ -1,6 +1,6 @@
 package io.ebean;

-import com.fasterxml.jackson.core.JsonFactory;
+import io.avaje.json.stream.JsonStream;
 import io.ebean.annotation.*;
 import io.ebean.cache.ServerCachePlugin;
 import io.ebean.config.*;
@@ -61,6 +61,11 @@ public interface DatabaseBuilder {

  /**
   * Build and return the Database instance.
+   * <p>
+   * When {@link #setRegister(boolean)} is set to true (the default), and a database
+   * with the same name is already registered, this throws an {@link IllegalStateException}.
+   * Use a unique name, or use {@link #setRegister(boolean)} with {@code false} if the
+   * Database instance is not intended to be registered/looked up by name.
   */
  Database build();

@@ -360,18 +365,18 @@ public interface DatabaseBuilder {
  DatabaseBuilder putServiceObject(Object configObject);

  /**
-   * Set the Jackson JsonFactory to use.
+   * Set the JsonStream to use.
   * <p>
   * If not set a default implementation will be used.
   */
-  default DatabaseBuilder jsonFactory(JsonFactory jsonFactory) {
-    return setJsonFactory(jsonFactory);
+  default DatabaseBuilder jsonStream(JsonStream jsonStream) {
+    return setJsonStream(jsonStream);
  }

  /**
-   * @deprecated migrate to {@link #jsonFactory(JsonFactory)}.
+   * @deprecated migrate to {@link #jsonStream(JsonStream)}.
   */
-  DatabaseBuilder setJsonFactory(JsonFactory jsonFactory);
+  DatabaseBuilder setJsonStream(JsonStream jsonStream);

  /**
   * Set the JSON format to use for DateTime types.
@@ -723,19 +728,6 @@ public interface DatabaseBuilder {
  @Deprecated
  DatabaseBuilder setReadAuditPrepare(ReadAuditPrepare readAuditPrepare);

-  /**
-   * Set the configuration for profiling.
-   */
-  default DatabaseBuilder profilingConfig(ProfilingConfig profilingConfig) {
-    return setProfilingConfig(profilingConfig);
-  }
-
-  /**
-   * @deprecated migrate to {@link #profilingConfig(ProfilingConfig)}.
-   */
-  @Deprecated
-  DatabaseBuilder setProfilingConfig(ProfilingConfig profilingConfig);
-
  /**
   * Set the suffix appended to the base table to derive the view that contains the union
   * of the base table and the history table in order to support asOf queries.
@@ -896,6 +888,13 @@ public interface DatabaseBuilder {
  @Deprecated
  DatabaseBuilder setBackgroundExecutorWrapper(BackgroundExecutorWrapper backgroundExecutorWrapper);

+  /**
+   * Enable tenant-partitioned caches. When enabled each tenant gets its own cache namespace,
+   * improving cache-hit ratio by preventing cross-tenant key collisions.
+   * Use {@link SpiCacheManager#clearTenant(Object)} when a tenant is deactivated.
+   */
+  DatabaseBuilder tenantPartitionedCache(boolean tenantPartitionedCache);
+
  /**
   * Set the L2 cache default max size.
   */
@@ -995,7 +994,7 @@ public interface DatabaseBuilder {
   * <p>
   * Use this to override the default known aggregation functions.
   */
-  DatabaseConfig aggregateFormulaContext(AggregateFormulaContext aggregateFormulaContext);
+  DatabaseBuilder aggregateFormulaContext(AggregateFormulaContext aggregateFormulaContext);

  /**
   * Set to true if all DB column and table names should use quoted identifiers.
@@ -2234,7 +2233,7 @@ public interface DatabaseBuilder {
   *
   * @param includeLabelInSql When true include a SQL inline comment in generated SELECT queries.
   */
-  DatabaseConfig includeLabelInSql(boolean includeLabelInSql);
+  DatabaseBuilder includeLabelInSql(boolean includeLabelInSql);

  /**
   * Set the naming convention to apply to metrics names.
@@ -2252,7 +2251,7 @@ public interface DatabaseBuilder {
  /**
   * Sets the length check mode.
   */
-  DatabaseConfig lengthCheck(LengthCheck lengthCheck);
+  DatabaseBuilder lengthCheck(LengthCheck lengthCheck);

  /**
   * Provides read access (getters) for the DatabaseBuilder configuration
@@ -2267,11 +2266,11 @@ public interface DatabaseBuilder {
    boolean isAutoLoadModuleInfo();

    /**
-     * Return the Jackson JsonFactory to use.
+     * Return the JsonStream to use.
     * <p>
     * If not set a default implementation will be used.
     */
-    JsonFactory getJsonFactory();
+    JsonStream getJsonStream();

    /**
     * Get the clock used for setting the timestamps (e.g. @UpdatedTimestamp) on objects.
@@ -2490,11 +2489,6 @@ public interface DatabaseBuilder {
     */
    TenantCatalogProvider getTenantCatalogProvider();

-    /**
-     * Return the configuration for profiling.
-     */
-    ProfilingConfig getProfilingConfig();
-
    /**
     * Return the DB schema to use.
     */
@@ -2581,6 +2575,11 @@ public interface DatabaseBuilder {
     */
    boolean isAutoPersistUpdates();

+    /**
+     * Return true if caches are partitioned by tenant.
+     */
+    boolean isTenantPartitionedCache();
+
    /**
     * Return the L2 cache default max size.
     */
@@ -8,18 +8,18 @@ import jakarta.persistence.PersistenceException;
 import java.util.concurrent.locks.ReentrantLock;

 /**
- * Creates Database instances.
+ * Low-level factory for creating {@link Database} instances.
 * <p>
- * This uses either DatabaseConfig or properties in the application.properties file to
- * configure and create a Database instance.
+ * Most applications should prefer {@link Database#builder()} together with {@link DatabaseBuilder#build()}.
+ * This factory remains for legacy creation entry points plus container lifecycle methods.
 * <p>
- * The Database instance can either be registered with the DB singleton or
- * not. The DB singleton effectively holds a map of Database by a name.
- * If the Database is registered with the DB singleton you can retrieve it
+ * The Database instance can either be registered with the {@link DB} singleton or
+ * not. The {@link DB} singleton effectively holds a map of {@link Database} by name.
+ * If the Database is registered with the {@link DB} singleton you can retrieve it
 * later via {@link DB#byName(String)}.
 * <p>
 * One Database can be nominated as the 'default/primary' Database. Many
- * methods on the DB singleton such as {@link DB#find(Class)} are just a
+ * methods on the {@link DB} singleton such as {@link DB#find(Class)} are just a
 * convenient way of using the 'default/primary' Database.
 */
 public final class DatabaseFactory {
@@ -36,7 +36,8 @@ public final class DatabaseFactory {
   * Initialise the container with clustering configuration.
   * <p>
   * Call this prior to creating any Database instances or alternatively set the
-   * ContainerConfig on the DatabaseConfig when creating the first Database instance.
+   * {@link ContainerConfig} on the first {@link DatabaseBuilder} via
+   * {@link DatabaseBuilder#containerConfig(ContainerConfig)}.
   */
  public static void initialiseContainer(ContainerConfig containerConfig) {
    lock.lock();
@@ -48,8 +49,11 @@ public final class DatabaseFactory {
  }

  /**
-   * Create using properties to configure the database.
+   * Create using configuration loaded from properties for the given database name.
+   *
+   * @deprecated migrate to {@code Database.builder().name(name).loadFromProperties().build()}.
   */
+  @Deprecated
  public static Database create(String name) {
    lock.lock();
    try {
@@ -60,34 +64,35 @@ public final class DatabaseFactory {
  }

  /**
-   * Create using the DatabaseConfig object to configure the database.
-   *
-   * <pre>{@code
-   *
-   *   DatabaseConfig config = new DatabaseConfig();
-   *   config.setName("db");
-   *   config.loadProperties();
-   *
-   *   Database database = DatabaseFactory.create(config);
-   *
-   * }</pre>
+   * @deprecated migrate to {@link DatabaseBuilder#build()}.
   */
+  @Deprecated(forRemoval = true)
  public static Database create(DatabaseBuilder builder) {
    lock.lock();
    try {
      var config = builder.settings();
-      if (config.getName() == null) {
+      var name = config.getName();
+      if (name == null) {
        throw new PersistenceException("The name is null (it is required)");
      }
+      if (config.isRegister()) {
+        // We're explicitly creating a database to be registered, so avoid
+        // triggering DbContext static initialisation to auto-create a default one.
+        DbPrimary.setSkip(true);
+        if (DbContext.getInstance().contains(name)) {
+          throw new IllegalStateException("A Database with name [" + name + "] is already registered."
+            + " Use a unique DatabaseConfig name, or set DatabaseConfig.setRegister(false)"
+            + " if this Database instance is not intended to be registered/looked up by name.");
+        }
+      }
      Database server = createInternal(config);
      if (config.isRegister()) {
        if (config.isDefaultServer()) {
-          if (defaultServerName != null && !defaultServerName.equals(config.getName())) {
-            throw new IllegalStateException("Registering [" + config.getName() + "] as the default server but [" + defaultServerName + "] is already registered as the default");
+          if (defaultServerName != null && !defaultServerName.equals(name)) {
+            throw new IllegalStateException("Registering [" + name + "] as the default server but [" + defaultServerName + "] is already registered as the default");
          }
-          defaultServerName = config.getName();
+          defaultServerName = name;
        }
-        DbPrimary.setSkip(true);
        DbContext.getInstance().register(server, config.isDefaultServer());
      }
      return server;
@@ -97,7 +102,8 @@ public final class DatabaseFactory {
  }

  /**
-   * Create using the DatabaseConfig additionally specifying a classLoader to use as the context class loader.
+   * Create using the {@link DatabaseBuilder}, additionally specifying a classLoader to use as the
+   * context class loader.
   */
  public static Database createWithContextClassLoader(DatabaseBuilder config, ClassLoader classLoader) {
    lock.lock();
@@ -115,6 +121,24 @@ public final class DatabaseFactory {
    }
  }

+  /**
+   * Remove the registration of this Database.
+   * <p>
+   * This is invoked when a Database is shutdown so that its registered name
+   * becomes available again for a subsequently created Database with the same name.
+   */
+  public static void unregister(Database server) {
+    lock.lock();
+    try {
+      DbContext.getInstance().deregister(server);
+      if (server.name().equals(defaultServerName)) {
+        defaultServerName = null;
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
  /**
   * Shutdown gracefully all Database instances cleaning up any resources as required.
   * <p>
@@ -4,6 +4,7 @@ import io.ebean.config.BeanNotEnhancedException;
 import io.ebean.datasource.DataSourceConfigurationException;

 import jakarta.persistence.PersistenceException;
+
 import java.util.HashMap;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.locks.ReentrantLock;
@@ -75,6 +76,10 @@ final class DbContext {
    return defaultDatabase;
  }

+  boolean contains(String name) {
+    return concMap.containsKey(name);
+  }
+
  /**
   * Return the database by name.
   */
@@ -92,6 +97,7 @@ final class DbContext {
  /**
   * Read, create and put of Databases.
   */
+  @SuppressWarnings("deprecation")
  private Database getWithCreate(String name) {
    lock.lock();
    try {
@@ -114,6 +120,27 @@ final class DbContext {
    registerWithName(server.name(), server, isDefault);
  }

+  /**
+   * Remove the registration for this Database (typically on shutdown) so that
+   * its name becomes available again for a subsequently created Database.
+   * <p>
+   * Only removes the registration if it currently maps to this exact instance
+   * (avoids removing a different Database subsequently registered with the same name).
+   */
+  void deregister(Database server) {
+    lock.lock();
+    try {
+      String name = server.name();
+      concMap.remove(name, server);
+      syncMap.remove(name, server);
+      if (defaultDatabase == server) {
+        defaultDatabase = null;
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
  private void registerWithName(String name, Database server, boolean isDefault) {
    lock.lock();
    try {
@@ -246,4 +246,41 @@ public interface DtoQuery<T> extends CancelableQuery {
   */
  DtoQuery<T> usingMaster(boolean useMaster);

+  /**
+   * Return a PagedList for this query using firstRow and maxRows.
+   * <p>
+   * The benefit of using this over findList() is that it provides functionality to get the
+   * total row count etc.
+   * <p>
+   * If maxRows is not set on the query prior to calling findPagedList() then a
+   * PersistenceException is thrown.
+   * <p>
+   * This is only supported for a DtoQuery that is derived from an ORM query via
+   * {@link Query#asDto(Class)} / {@link ExpressionList#asDto(Class)}. It is not supported
+   * for a DtoQuery based on raw SQL (e.g. via {@link Database#findDto(Class, String)}) as
+   * there is no query structure available from which to derive a matching row count query -
+   * a PersistenceException is thrown in that case.
+   * <pre>{@code
+   *
+   *  PagedList<OrderDto> pagedList =
+   *    DB.find(Order.class)
+   *       .where().eq("status", Order.Status.NEW)
+   *       .orderBy().asc("id")
+   *       .setFirstRow(50)
+   *       .setMaxRows(20)
+   *       .asDto(OrderDto.class)
+   *       .findPagedList();
+   *
+   *       // fetch the total row count in the background
+   *       pagedList.loadCount();
+   *
+   *       List<OrderDto> orders = pagedList.getList();
+   *       int totalRowCount = pagedList.getTotalCount();
+   *
+   * }</pre>
+   *
+   * @return The PagedList
+   */
+  PagedList<T> findPagedList();
+
 }
@@ -205,6 +205,22 @@ public interface ExpressionList<T> {
   */
  int delete();

+  /**
+   * Execute as a delete query permanently deleting the 'root level' beans that match the
+   * predicates in the query without soft delete.
+   * <p>
+   * This is the same as {@link #delete()} except that when the bean type uses soft delete
+   * (e.g. {@code @SoftDelete}) the matching rows are permanently (hard) deleted rather than
+   * being marked as deleted.
+   * <p>
+   * Note that if the query includes joins then the generated delete statement may not be
+   * optimal depending on the database platform.
+   * </p>
+   *
+   * @return the number of rows that were permanently deleted.
+   */
+  int deletePermanent();
+
  /**
   * Execute as a update query.
   *
@@ -607,6 +607,21 @@ public interface QueryBuilder<SELF extends QueryBuilder<SELF, T>, T> extends Que
   */
  int delete();

+  /**
+   * Execute as a delete query permanently deleting the 'root level' beans that match the
+   * predicates in the query without soft delete.
+   * <p>
+   * This is the same as {@link #delete()} except that when the bean type uses soft delete
+   * (e.g. {@code @SoftDelete}) the matching rows are permanently (hard) deleted rather than
+   * being marked as deleted.
+   * <p>
+   * Note that if the query includes joins then the generated delete statement may not be
+   * optimal depending on the database platform.
+   *
+   * @return the number of beans/rows that were permanently deleted.
+   */
+  int deletePermanent();
+
  /**
   * Execute the query returning true if a row is found.
   * <p>
@@ -41,6 +41,49 @@ public interface RawSqlBuilder {
    return XBootstrapService.rawSql().unparsed(sql);
  }

+  /**
+   * Return a RawSqlBuilder for SQL containing {@code ${where}}, {@code ${having}} and/or
+   * {@code ${orderBy}} placeholder(s). Unlike {@link #parse(String)} this does NOT attempt to parse
+   * the SELECT columns, so it supports complex SQL such as CTEs, subqueries, and window functions.
+   * <p>
+   * Explicit column mappings must be provided (as with {@link #unparsed(String)}), but
+   * WHERE, HAVING and ORDER BY expressions can be added dynamically via the query API - provided
+   * the corresponding placeholder is present in the SQL. If a query calls {@code .orderBy(...)}
+   * on a template with no {@code ${orderBy}}/{@code ${andOrderBy}} placeholder, that ordering is
+   * ignored (there is no injection point for it) rather than producing invalid SQL.
+   * </p>
+   * <p>
+   * Available placeholders:
+   * </p>
+   * <ul>
+   *   <li>{@code ${where}} / {@code ${andWhere}} - inject "where &lt;expr&gt;" / "and &lt;expr&gt;"</li>
+   *   <li>{@code ${having}} / {@code ${andHaving}} - inject "having &lt;expr&gt;" / "and &lt;expr&gt;"</li>
+   *   <li>{@code ${orderBy}} / {@code ${andOrderBy}} - inject "order by &lt;expr&gt;" / ", &lt;expr&gt;"</li>
+   * </ul>
+   * <h3>Example:</h3>
+   * <pre>{@code
+   *
+   *   String sql = """
+   *     with agg as (
+   *       select company_id, sum(amount) as total
+   *       from orders
+   *       ${where}
+   *       group by company_id
+   *     )
+   *     select company_id, total from agg ${orderBy}
+   *     """;
+   *
+   *   RawSql rawSql = RawSqlBuilder.withPlaceholders(sql)
+   *     .columnMapping("company_id", "companyId")
+   *     .columnMapping("total", "total")
+   *     .create();
+   *
+   * }</pre>
+   */
+  static RawSqlBuilder withPlaceholders(String sql) {
+    return XBootstrapService.rawSql().withPlaceholders(sql);
+  }
+
  /**
   * Return a RawSqlBuilder parsing the sql.
   * <p>
@@ -260,6 +260,27 @@ public interface Transaction extends AutoCloseable {
   */
  void setUpdateAllLoadedProperties(boolean updateAllLoadedProperties);

+  /**
+   * Set to false to disable auto-generation of {@code @WhenCreated}, {@code @WhenModified},
+   * {@code @WhoCreated} and {@code @WhoModified} values for this transaction.
+   * <p>
+   * When disabled, Ebean will only set a generated property value if the property currently
+   * has a null value (for inserts) or is a {@code @Version} property. Any value already set
+   * on the bean is preserved.
+   * <p>
+   * This is useful in backup and restore scenarios where you need to retain the original
+   * audit timestamps and user values rather than have them overwritten.
+   * <pre>{@code
+   *   try (Transaction txn = DB.beginTransaction()) {
+   *     txn.setGeneratedPropertiesEnabled(false);
+   *     bean.setWhenCreated(originalTimestamp);
+   *     DB.save(bean);
+   *     txn.commit();
+   *   }
+   * }</pre>
+   */
+  void setGeneratedPropertiesEnabled(boolean enable);
+
  /**
   * Set if the L2 cache should be skipped for "find by id" and "find by natural key" queries.
   * <p>
@@ -205,4 +205,20 @@ public interface UpdateQuery<T> {
   */
  int update();

+  /**
+   * Return the timeout used to execute this statement.
+   */
+  int getTimeout();
+
+  /**
+   * Set a timeout on this query.
+   * <p>
+   * This will typically result in a call to setQueryTimeout() on a
+   * preparedStatement. If the timeout occurs an exception will be thrown - this
+   * will be a SQLException wrapped up in a PersistenceException.
+   * </p>
+   *
+   * @param secs the query timeout limit in seconds. Zero means there is no limit.
+   */
+  UpdateQuery<T> setTimeout(int secs);
 }
@@ -175,7 +175,7 @@ public final class InterceptReadOnly extends InterceptBase {

  @Override
  public boolean isUpdate() {
-    return false;
+    return true;
  }

  @Override
@@ -151,14 +151,16 @@ public final class BeanList<E> extends AbstractBeanCollection<E> implements List
    }
  }

-  /**
-   * Set the actual underlying list.
-   * <p>
-   * This is primarily for the deferred fetching function.
-   */
-  @SuppressWarnings("unchecked")
-  public void setActualList(List<?> list) {
-    this.list = (List<E>) list;
+  public BeanCollectionAdd collectionAdd() {
+    if (list == null) {
+      list = new ArrayList<>();
+    }
+    return this;
+  }
+
+  public void refresh(ModifyListenMode modifyListenMode, BeanList<E> newList) {
+    setModifyListening(modifyListenMode);
+    this.list = newList.actualList();
  }

  /**
@@ -1,9 +1,6 @@
 package io.ebean.common;

-import io.ebean.bean.BeanCollection;
-import io.ebean.bean.BeanCollectionLoader;
-import io.ebean.bean.EntityBean;
-import io.ebean.bean.ToStringBuilder;
+import io.ebean.bean.*;

 import java.util.*;

@@ -17,12 +14,12 @@ public final class BeanMap<K, E> extends AbstractBeanCollection<E> implements Ma
  /**
   * The underlying map implementation.
   */
-  private Map<K, E> map;
+  private LinkedHashMap<K, E> map;

  /**
   * Create with a given Map.
   */
-  public BeanMap(Map<K, E> map) {
+  public BeanMap(LinkedHashMap<K, E> map) {
    this.map = map;
  }

@@ -165,18 +162,23 @@ public final class BeanMap<K, E> extends AbstractBeanCollection<E> implements Ma
    }
  }

-  /**
-   * Set the actual underlying map. Used for performing lazy fetch.
-   */
+  public LinkedHashMap<K, E> collectionAdd() {
+    if (map == null) {
+      map = new LinkedHashMap<>();
+    }
+    return map;
+  }
+
  @SuppressWarnings("unchecked")
-  public void setActualMap(Map<?, ?> map) {
-    this.map = (Map<K, E>) map;
+  public void refresh(ModifyListenMode modifyListenMode, BeanMap<?, ?> newMap) {
+    setModifyListening(modifyListenMode);
+    this.map = (LinkedHashMap<K, E>) newMap.actualMap();
  }

  /**
   * Return the actual underlying map.
   */
-  public Map<K, E> actualMap() {
+  public LinkedHashMap<K, E> actualMap() {
    return map;
  }

@@ -15,12 +15,12 @@ public final class BeanSet<E> extends AbstractBeanCollection<E> implements Set<E
  /**
   * The underlying Set implementation.
   */
-  private Set<E> set;
+  private LinkedHashSet<E> set;

  /**
   * Create with a specific Set implementation.
   */
-  public BeanSet(Set<E> set) {
+  public BeanSet(LinkedHashSet<E> set) {
    this.set = set;
  }

@@ -146,18 +146,22 @@ public final class BeanSet<E> extends AbstractBeanCollection<E> implements Set<E
    }
  }

-  /**
-   * Set the underlying set (used for lazy fetch).
-   */
-  @SuppressWarnings("unchecked")
-  public void setActualSet(Set<?> set) {
-    this.set = (Set<E>) set;
+  public BeanCollectionAdd collectionAdd() {
+    if (set == null) {
+      set = new LinkedHashSet<>();
+    }
+    return this;
+  }
+
+  public void refresh(ModifyListenMode modifyListenMode, BeanSet<E> newSet) {
+    setModifyListening(modifyListenMode);
+    this.set = newSet.actualSet();
  }

  /**
   * Return the actual underlying set.
   */
-  public Set<E> actualSet() {
+  public LinkedHashSet<E> actualSet() {
    return set;
  }

@@ -60,7 +60,8 @@ public class ClassLoadConfig {
  }

  public boolean isJacksonCorePresent() {
-    return isPresent("com.fasterxml.jackson.core.JsonParser");
+    // Legacy method name retained for compatibility; now checks avaje JSON core.
+    return isPresent("io.avaje.json.JsonReader");
  }

  /**
@@ -158,4 +159,3 @@ public class ClassLoadConfig {
    }
  }
 }
-
@@ -1,7 +1,7 @@
 package io.ebean.config;

-import com.fasterxml.jackson.core.JsonFactory;
 import io.avaje.config.Config;
+import io.avaje.json.stream.JsonStream;
 import io.ebean.*;
 import io.ebean.annotation.MutationDetection;
 import io.ebean.annotation.PersistBatch;
@@ -31,38 +31,15 @@ import java.util.function.Consumer;
 import java.util.function.Function;

 /**
- * The configuration used for creating a Database.
- * <p>
- * Used to programmatically construct an Database and optionally register it
- * with the DB singleton.
- * <p>
- * If you just use DB thout this programmatic configuration Ebean will read
- * the application.properties file and take the configuration from there. This usually
- * includes searching the class path and automatically registering any entity
- * classes and listeners etc.
- * <pre>{@code
- *
- * DatabaseConfig config = new DatabaseConfig();
- *
- * // read the ebean.properties and load
- * // those settings into this DatabaseConfig object
- * config.loadFromProperties();
- *
- * // explicitly register the entity beans to avoid classpath scanning
- * config.addClass(Customer.class);
- * config.addClass(User.class);
- *
- * Database db = DatabaseFactory.create(config);
- *
- * }</pre>
+ * Deprecated migrate to {@link Database#builder()} rather than constructing {@code DatabaseConfig} directly.
 *
 * <p>
- * Note that DatabaseConfigProvider provides a standard Java ServiceLoader mechanism that can
- * be used to apply configuration to the DatabaseConfig.
+ * Note that {@link DatabaseConfigProvider} provides a standard Java ServiceLoader mechanism that can
+ * be used to apply configuration to the {@link DatabaseBuilder}.
 *
 * @author emcgreal
 * @author rbygrave
- * @see DatabaseFactory
+ * @see Database#builder()
 */
 public class DatabaseConfig implements DatabaseBuilder.Settings {

@@ -443,7 +420,7 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
   * The default PersistenceContextScope used if one is not explicitly set on a query.
   */
  private PersistenceContextScope persistenceContextScope = PersistenceContextScope.TRANSACTION;
-  private JsonFactory jsonFactory;
+  private JsonStream jsonStream;
  private boolean localTimeWithNanos;
  private boolean durationWithNanos;
  private int maxCallStack = 5;
@@ -455,6 +432,8 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
  private int backgroundExecutorShutdownSecs = 30;
  private BackgroundExecutorWrapper backgroundExecutorWrapper = new MdcBackgroundExecutorWrapper();

+  private boolean tenantPartitionedCache;
+
  // defaults for the L2 bean caching

  private int cacheMaxSize = 10000;
@@ -539,8 +518,6 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
   */
  private SlowQueryListener slowQueryListener;

-  private ProfilingConfig profilingConfig = new ProfilingConfig();
-
  /**
   * The mappingLocations for searching xml mapping.
   */
@@ -560,12 +537,14 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
  private Function<String, String> metricNaming = MetricNamingMatch.INSTANCE;

  /**
-   * Construct a Database Configuration for programmatically creating an Database.
+   * @deprecated migrate to {@link Database#builder()} and configure the returned {@link DatabaseBuilder}.
   */
+  @Deprecated(forRemoval = true)
  public DatabaseConfig() {
  }

  @Override
+  @SuppressWarnings("removal")
  public Database build() {
    return DatabaseFactory.create(this);
  }
@@ -654,13 +633,13 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
  }

  @Override
-  public JsonFactory getJsonFactory() {
-    return jsonFactory;
+  public JsonStream getJsonStream() {
+    return jsonStream;
  }

  @Override
-  public DatabaseConfig setJsonFactory(JsonFactory jsonFactory) {
-    this.jsonFactory = jsonFactory;
+  public DatabaseConfig setJsonStream(JsonStream jsonStream) {
+    this.jsonStream = jsonStream;
    return this;
  }

@@ -1028,17 +1007,6 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
    return this;
  }

-  @Override
-  public ProfilingConfig getProfilingConfig() {
-    return profilingConfig;
-  }
-
-  @Override
-  public DatabaseConfig setProfilingConfig(ProfilingConfig profilingConfig) {
-    this.profilingConfig = profilingConfig;
-    return this;
-  }
-
  @Override
  public String getDbSchema() {
    return dbSchema;
@@ -1209,6 +1177,17 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
    return cacheMaxSize;
  }

+  @Override
+  public boolean isTenantPartitionedCache() {
+    return tenantPartitionedCache;
+  }
+
+  @Override
+  public DatabaseConfig tenantPartitionedCache(boolean tenantPartitionedCache) {
+    this.tenantPartitionedCache = tenantPartitionedCache;
+    return this;
+  }
+
  @Override
  public DatabaseConfig setCacheMaxSize(int cacheMaxSize) {
    this.cacheMaxSize = cacheMaxSize;
@@ -2137,7 +2116,6 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
   */
  protected void loadSettings(PropertiesWrapper p) {
    dbSchema = p.get("dbSchema", dbSchema);
-    profilingConfig.loadSettings(p, name);
    platformConfig.loadSettings(p);
    if (platformConfig.isAllQuotedIdentifiers()) {
      adjustNamingConventionForAllQuoted();
@@ -2263,6 +2241,15 @@ public class DatabaseConfig implements DatabaseBuilder.Settings {
    ddlPlaceholders = p.get("ddl.placeholders", ddlPlaceholders);
    ddlHeader = p.get("ddl.header", ddlHeader);

+    tenantPartitionedCache = p.getBoolean("tenantPartitionedCache", tenantPartitionedCache);
+
+    cacheMaxSize = p.getInt("cacheMaxSize", cacheMaxSize);
+    cacheMaxIdleTime = p.getInt("cacheMaxIdleTime", cacheMaxIdleTime);
+    cacheMaxTimeToLive = p.getInt("cacheMaxTimeToLive", cacheMaxTimeToLive);
+    queryCacheMaxSize = p.getInt("queryCacheMaxSize", queryCacheMaxSize);
+    queryCacheMaxIdleTime = p.getInt("queryCacheMaxIdleTime", queryCacheMaxIdleTime);
+    queryCacheMaxTimeToLive = p.getInt("queryCacheMaxTimeToLive", queryCacheMaxTimeToLive);
+
    // read tenant-configuration from config:
    // tenant.mode = NONE | DB | SCHEMA | CATALOG | PARTITION
    String mode = p.get("tenant.mode");
@@ -3,14 +3,14 @@ package io.ebean.config;
 import io.ebean.DatabaseBuilder;

 /**
- * Provides a ServiceLoader based mechanism to configure a DatabaseConfig.
+ * Provides a ServiceLoader based mechanism to configure a {@link DatabaseBuilder}.
 * <p>
 * Provide an implementation and register it via the standard Java ServiceLoader mechanism
 * via a file at <code>META-INF/services/io.ebean.config.DatabaseConfigProvider</code>.
 * </p>
 * <p>
 * If you are using a DI container like Spring or Guice you are unlikely to use this but instead use a
- * spring specific configuration.  When we are not using a DI container we may use this mechanism to
+ * spring specific configuration. When we are not using a DI container we may use this mechanism to
 * explicitly register the entity beans and avoid classpath scanning.
 * </p>
 * <pre>{@code
@@ -18,7 +18,7 @@ import io.ebean.DatabaseBuilder;
 * public class EbeanConfigProvider implements DatabaseConfigProvider {
 *
 *   @Override
- *   public void apply(DatabaseConfig config) {
+ *   public void apply(DatabaseBuilder config) {
 *
 *     // register the entity bean classes explicitly
 *     config.addClass(Customer.class);
@@ -32,10 +32,9 @@ import io.ebean.DatabaseBuilder;
 public interface DatabaseConfigProvider {

  /**
-   * Apply the configuration to the DatabaseConfig.
+   * Apply the configuration to the {@link DatabaseBuilder}.
   * <p>
   * Typically we explicitly register entity bean classes and thus avoid classpath scanning.
-   * </p>
   */
  void apply(DatabaseBuilder config);
 }
@@ -1,148 +0,0 @@
-package io.ebean.config;
-
-/**
- * Configuration for transaction profiling.
- */
-public class ProfilingConfig {
-
-  /**
-   * When true transaction profiling is enabled.
-   */
-  private boolean enabled;
-
-  /**
-   * Set true for verbose mode.
-   */
-  private boolean verbose;
-
-  /**
-   * The minimum transaction execution time to be included in profiling.
-   */
-  private long minimumMicros;
-
-  /**
-   * A specific set of profileIds to include in profiling.
-   */
-  private int[] includeProfileIds = {};
-
-  /**
-   * The number of profiles to write per file.
-   */
-  private long profilesPerFile = 1000;
-
-  private String directory = "profiling";
-
-  /**
-   * Return true if transaction profiling is enabled.
-   */
-  public boolean isEnabled() {
-    return enabled;
-  }
-
-  /**
-   * Set to true to enable transaction profiling.
-   */
-  public void setEnabled(boolean enabled) {
-    this.enabled = enabled;
-  }
-
-  /**
-   * Return true if verbose mode is used.
-   */
-  public boolean isVerbose() {
-    return verbose;
-  }
-
-  /**
-   * Set to true to use verbose mode.
-   */
-  public void setVerbose(boolean verbose) {
-    this.verbose = verbose;
-  }
-
-  /**
-   * Return the minimum transaction execution to be included in profiling.
-   */
-  public long getMinimumMicros() {
-    return minimumMicros;
-  }
-
-  /**
-   * Set the minimum transaction execution to be included in profiling.
-   */
-  public void setMinimumMicros(long minimumMicros) {
-    this.minimumMicros = minimumMicros;
-  }
-
-  /**
-   * Return the specific set of profileIds to include in profiling.
-   * When not set all transactions with profileIds are included.
-   */
-  public int[] getIncludeProfileIds() {
-    return includeProfileIds;
-  }
-
-  /**
-   * Set a specific set of profileIds to include in profiling.
-   * When not set all transactions with profileIds are included.
-   */
-  public void setIncludeProfileIds(int[] includeProfileIds) {
-    this.includeProfileIds = includeProfileIds;
-  }
-
-  /**
-   * Return the number of profiles to write to a single file.
-   */
-  public long getProfilesPerFile() {
-    return profilesPerFile;
-  }
-
-  /**
-   * Set the number of profiles to write to a single file.
-   */
-  public void setProfilesPerFile(long profilesPerFile) {
-    this.profilesPerFile = profilesPerFile;
-  }
-
-  /**
-   * Return the directory profiling files are put into.
-   */
-  public String getDirectory() {
-    return directory;
-  }
-
-  /**
-   * Set the directory profiling files are put into.
-   */
-  public void setDirectory(String directory) {
-    this.directory = directory;
-  }
-
-  /**
-   * Load setting from properties.
-   */
-  public void loadSettings(PropertiesWrapper p, String name) {
-
-    enabled = p.getBoolean("profiling", enabled);
-    verbose = p.getBoolean("profiling.verbose", verbose);
-
-    directory = p.get("profiling.directory", directory);
-    profilesPerFile = p.getLong("profiling.profilesPerFile", profilesPerFile);
-    minimumMicros = p.getLong("profiling.minimumMicros", minimumMicros);
-
-    String includeIds = p.get("profiling.includeProfileIds");
-    if (includeIds != null) {
-      includeProfileIds = parseIds(includeIds);
-    }
-  }
-
-  private int[] parseIds(String includeIds) {
-
-    String[] ids = includeIds.split(",");
-    int[] vals = new int[ids.length];
-    for (int i = 0; i < ids.length; i++) {
-      vals[i] = Integer.parseInt(ids[i]);
-    }
-    return vals;
-  }
-}
@@ -162,6 +162,18 @@ public class DatabasePlatform {
  protected boolean selectCountWithAlias;
  protected boolean selectCountWithColumnAlias;

+  /**
+   * Set true for platforms where {@code exists(...)} can only be used as a predicate
+   * and not as a directly selectable scalar boolean expression (e.g. SQL Server, Oracle).
+   */
+  protected boolean existsWithCaseWhen;
+
+  /**
+   * Clause appended after the {@code case when exists(...) then 1 else 0 end} exists query
+   * for platforms that require a FROM clause on every select (e.g. {@code from dual} on Oracle).
+   */
+  protected String existsFromClause = "";
+
  /**
   * If set then use the FORWARD ONLY hint when creating ResultSets for
   * findIterate() and findVisit().
@@ -660,6 +672,21 @@ public class DatabasePlatform {
    return selectCountWithColumnAlias;
  }

+  /**
+   * Return true if a scalar boolean {@code exists(...)} expression is not supported
+   * as a select expression and needs to be wrapped as {@code case when exists(...) then 1 else 0 end}.
+   */
+  public boolean existsWithCaseWhen() {
+    return existsWithCaseWhen;
+  }
+
+  /**
+   * Return the clause to append after the exists case-when wrapping (e.g. {@code from dual} on Oracle).
+   */
+  public String existsFromClause() {
+    return existsFromClause;
+  }
+

  public String completeSql(String sql, Query<?> query) {
    if (query.isForUpdate()) {
@@ -11,10 +11,12 @@ import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
+import java.util.ArrayDeque;
 import java.util.Collections;
+import java.util.Deque;
 import java.util.List;
-import java.util.NavigableSet;
-import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.locks.ReentrantLock;

@@ -23,18 +25,36 @@ import static java.lang.System.Logger.Level.ERROR;

 /**
 * Database sequence based IdGenerator.
+ * <p>
+ * Maintains a separate buffer of pre-fetched id values per tenant when the supplied
+ * DataSource implements {@link TenantConnectionSource}. For the common single-tenant
+ * case a single buffer is used (keyed by {@link #SINGLE}).
 */
 public abstract class SequenceIdGenerator implements PlatformIdGenerator {

  protected static final System.Logger log = AppLog.getLogger("io.ebean.SEQ");

-  private final ReentrantLock lock = new ReentrantLock();
+  /**
+   * Buffer key used when there is no current tenant (single-tenant or no tenant in scope).
+   */
+  private static final Object SINGLE = new Object();
+
  protected final String seqName;
  protected final DataSource dataSource;
  protected final BackgroundExecutor backgroundExecutor;
-  protected final NavigableSet<Long> idList = new TreeSet<>();
  protected final int allocationSize;
-  protected AtomicBoolean currentlyBackgroundLoading = new AtomicBoolean(false);
+  private final TenantConnectionSource tenantSource;
+  private final TenantBuffer single = new TenantBuffer();
+  private final ConcurrentMap<Object, TenantBuffer> buffers = new ConcurrentHashMap<>();
+
+  /**
+   * Per-tenant pre-fetched id buffer with its own lock and background-loading flag.
+   */
+  private static final class TenantBuffer {
+    final ReentrantLock lock = new ReentrantLock();
+    final Deque<Long> idList = new ArrayDeque<>();
+    final AtomicBoolean currentlyBackgroundLoading = new AtomicBoolean(false);
+  }

  /**
   * Construct given a dataSource and sql to return the next sequence value.
@@ -44,6 +64,7 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
    this.dataSource = ds;
    this.seqName = seqName;
    this.allocationSize = allocationSize;
+    this.tenantSource = (ds instanceof TenantConnectionSource) ? (TenantConnectionSource) ds : null;
  }

  public abstract String getSql(int batchSize);
@@ -64,6 +85,24 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
    return true;
  }

+  private Object currentTenantKey() {
+    if (tenantSource != null) {
+      Object tenantId = tenantSource.currentTenantId();
+      if (tenantId != null) {
+        return tenantId;
+      }
+    }
+    return SINGLE;
+  }
+
+  private TenantBuffer buffer(Object tenantKey) {
+    if (tenantKey == SINGLE) {
+      // common single-tenant path - avoid the concurrent map lookup
+      return single;
+    }
+    return buffers.computeIfAbsent(tenantKey, k -> new TenantBuffer());
+  }
+
  /**
   * If allocateSize is large load some sequences in a background thread.
   * <p>
@@ -78,23 +117,22 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {

  /**
   * Return the next Id.
-   * <p>
-   * If a Transaction has been passed in use the Connection from it.
-   * </p>
   */
  @Override
  public Object nextId(Transaction t) {
-    lock.lock();
+    Object tenantKey = currentTenantKey();
+    TenantBuffer buffer = buffer(tenantKey);
+    buffer.lock.lock();
    try {
-      int size = idList.size();
+      int size = buffer.idList.size();
      if (size > 0) {
        maybeLoadMoreInBackground(size);
      } else {
-        loadMore(allocationSize);
+        loadMore(tenantKey, buffer, allocationSize);
      }
-      return idList.pollFirst();
+      return buffer.idList.poll();
    } finally {
-      lock.unlock();
+      buffer.lock.unlock();
    }
  }

@@ -106,29 +144,36 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
    }
  }

-  private void loadMore(int requestSize) {
-    List<Long> newIds = getMoreIds(requestSize);
-    lock.lock();
+  private void loadMore(Object tenantKey, TenantBuffer buffer, int requestSize) {
+    List<Long> newIds = getMoreIds(tenantKey, requestSize);
+    buffer.lock.lock();
    try {
-      idList.addAll(newIds);
+      buffer.idList.addAll(newIds);
    } finally {
-      lock.unlock();
+      buffer.lock.unlock();
    }
  }

  /**
   * Load another batch of Id's using a background thread.
+   * <p>
+   * The tenant is captured here (submit time) as the current tenant is not in scope
+   * on the background executor thread.
   */
  protected void loadInBackground(final int requestSize) {
-    if (currentlyBackgroundLoading.get()) {
+    final Object tenantKey = currentTenantKey();
+    final TenantBuffer buffer = buffer(tenantKey);
+    if (!buffer.currentlyBackgroundLoading.compareAndSet(false, true)) {
      // skip as already background loading
      log.log(DEBUG, "... skip background sequence load (another load in progress)");
      return;
    }
-    currentlyBackgroundLoading.set(true);
    backgroundExecutor.execute(() -> {
-      loadMore(requestSize);
-      currentlyBackgroundLoading.set(false);
+      try {
+        loadMore(tenantKey, buffer, requestSize);
+      } finally {
+        buffer.currentlyBackgroundLoading.set(false);
+      }
    });
  }

@@ -140,7 +185,7 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
  /**
   * Get more Id's by executing a query and reading the Id's returned.
   */
-  protected List<Long> getMoreIds(int requestSize) {
+  protected List<Long> getMoreIds(Object tenantKey, int requestSize) {

    String sql = getSql(requestSize);

@@ -148,7 +193,7 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
    PreparedStatement statement = null;
    ResultSet resultSet = null;
    try {
-      connection = dataSource.getConnection();
+      connection = connectionFor(tenantKey);

      statement = connection.prepareStatement(sql);
      resultSet = statement.executeQuery();
@@ -174,6 +219,17 @@ public abstract class SequenceIdGenerator implements PlatformIdGenerator {
    }
  }

+  /**
+   * Return a connection for the given tenant. For multi-tenant this is routed to the
+   * tenant database/schema/catalog; otherwise the plain DataSource connection is used.
+   */
+  private Connection connectionFor(Object tenantKey) throws SQLException {
+    if (tenantSource != null && tenantKey != SINGLE) {
+      return tenantSource.connectionForTenant(tenantKey);
+    }
+    return dataSource.getConnection();
+  }
+
  /**
   * Close the JDBC resources.
   */
@@ -0,0 +1,29 @@
+package io.ebean.config.dbplatform;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+/**
+ * Optionally implemented by the DataSource passed to a {@link SequenceIdGenerator}
+ * to make sequence id allocation multi-tenant aware.
+ * <p>
+ * When the DataSource implements this interface the sequence generator maintains
+ * a separate id buffer per tenant and obtains connections that are routed to the
+ * correct tenant database (TenantMode.DB) or schema/catalog (TenantMode.SCHEMA / CATALOG).
+ * <p>
+ * The {@link #connectionForTenant(Object)} method takes an explicit tenantId so that
+ * background pre-fetch (which runs on a separate thread without the current tenant
+ * in scope) can fetch sequence values for the tenant captured at submit time.
+ */
+public interface TenantConnectionSource {
+
+  /**
+   * Return the current tenant id, or null when there is no current tenant scope.
+   */
+  Object currentTenantId();
+
+  /**
+   * Return a connection routed to the given tenant (its database, schema or catalog).
+   */
+  Connection connectionForTenant(Object tenantId) throws SQLException;
+}
@@ -1,6 +1,7 @@
 package io.ebean.event;

 import io.ebean.Database;
+import io.ebean.DatabaseFactory;
 import io.ebean.EbeanVersion;
 import io.ebean.service.SpiContainer;

@@ -188,6 +189,7 @@ public final class ShutdownManager {
   */
  public static void unregisterDatabase(Database server) {
    databases.remove(server);
+    DatabaseFactory.unregister(server);
  }

  private static class ShutdownHook extends Thread {
@@ -10,12 +10,23 @@ public interface MetaInfoManager {
  /**
   * Return the metrics for the database instance.
   * <p>
-   * This will reset the metrics (reset counters back to zero etc) and
-   * will only return the non-empty metrics.
+   * This is equivalent to {@link #collectMetrics(boolean)} with reset set to true.
+   * It will reset the metrics (reset counters back to zero etc) and will only return
+   * the non-empty metrics.
   * </p>
   */
  ServerMetrics collectMetrics();

+  /**
+   * Return the metrics for the database instance using the given reset behavior.
+   * <p>
+   * When reset is false, count and total values remain cumulative between collections.
+   * </p>
+   */
+  default ServerMetrics collectMetrics(boolean reset) {
+    return collectMetrics();
+  }
+
  /**
   * Visit the metrics resetting and collecting/reporting as desired.
   */
@@ -44,6 +44,11 @@ public interface MetaQueryPlan {
   */
  String plan();

+  /**
+   * The tenant ID of the plan.
+   */
+  Object tenantId();
+
  /**
   * Return the query execution time associated with the bind values capture.
   */
@@ -0,0 +1,135 @@
+package io.ebean.meta;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Canonical "v2" mapping of Ebean's internal flat metric names (e.g.
+ * {@code orm.Customer.findList}, {@code iud.User.save}, {@code txn.named.X},
+ * {@code l2.<region>.<op>}) into a metric family name plus a tag string following
+ * the label-tag convention.
+ *
+ * <p>This is the source-of-truth mapping for the v2 metrics JSON form
+ * ({@link ServerMetricsAsJson#writeV2(Appendable)}). The tag string is a canonical,
+ * sorted, comma separated list of {@code key:value} pairs, e.g.
+ * {@code "kind:orm,label:Customer.findList,type:Customer"}.
+ *
+ * <table>
+ *   <caption>Ebean prefix → family name + tags</caption>
+ *   <tr><th>Ebean prefix</th><th>name</th><th>tags</th></tr>
+ *   <tr><td>{@code iud.X}</td><td>{@code ebean.dml}</td><td>{@code label=X}</td></tr>
+ *   <tr><td>{@code orm.X}</td><td>{@code ebean.query}</td><td>{@code kind=orm, type=<bean>, label=X}</td></tr>
+ *   <tr><td>{@code dto.X}</td><td>{@code ebean.query}</td><td>{@code kind=dto, type=<bean>, label=X}</td></tr>
+ *   <tr><td>{@code sql.X}</td><td>{@code ebean.query}</td><td>{@code kind=sql, type=<bean>, label=X}</td></tr>
+ *   <tr><td>{@code txn.named.X} / {@code txn.X}</td><td>{@code ebean.txn}</td><td>{@code label=X}</td></tr>
+ *   <tr><td>{@code l2.<region>.<op>}</td><td>{@code ebean.l2}</td><td>{@code op=<op>, region=<region>}</td></tr>
+ *   <tr><td>(unrecognised)</td><td>{@code ebean.other}</td><td>{@code label=<original name>}</td></tr>
+ * </table>
+ *
+ * <p>The {@code kind} tag is the query category (orm/dto/sql) while the {@code type}
+ * tag is the queried bean/entity simple name. The {@code type} tag is omitted when
+ * the bean type is unknown.
+ */
+final class MetricNamingV2 {
+
+  /** Result of a name mapping: family name plus canonical tag string. */
+  static final class Mapped {
+    private final String name;
+    private final String tags;
+
+    Mapped(String name, String tags) {
+      this.name = name;
+      this.tags = tags;
+    }
+
+    String name() {
+      return name;
+    }
+
+    String tags() {
+      return tags;
+    }
+  }
+
+  private MetricNamingV2() {
+  }
+
+  /**
+   * Map an Ebean flat metric name (and optional bean type for query metrics) into
+   * the canonical family name plus tag string.
+   */
+  static Mapped map(String ebeanName, String beanType) {
+    if (ebeanName == null || ebeanName.isEmpty()) {
+      return new Mapped("ebean.other", "");
+    }
+    int firstDot = ebeanName.indexOf('.');
+    if (firstDot <= 0) {
+      return new Mapped("ebean.other", tags("label", ebeanName));
+    }
+    String prefix = ebeanName.substring(0, firstDot);
+    String rest = ebeanName.substring(firstDot + 1);
+    switch (prefix) {
+      case "iud":
+        return new Mapped("ebean.dml", tags("label", rest));
+      case "orm":
+        return query("orm", rest, beanType);
+      case "dto":
+        return query("dto", rest, beanType);
+      case "sql":
+        return query("sql", rest, beanType);
+      case "txn":
+        String txnLabel = rest.startsWith("named.") ? rest.substring("named.".length()) : rest;
+        return new Mapped("ebean.txn", tags("label", txnLabel));
+      case "l2":
+        return l2(rest);
+      default:
+        return new Mapped("ebean.other", tags("label", ebeanName));
+    }
+  }
+
+  private static Mapped query(String kind, String label, String beanType) {
+    if (beanType == null || beanType.isEmpty()) {
+      return new Mapped("ebean.query", tags("kind", kind, "label", label));
+    }
+    return new Mapped("ebean.query", tags("kind", kind, "type", beanType, "label", label));
+  }
+
+  private static Mapped l2(String rest) {
+    int dot = rest.indexOf('.');
+    if (dot <= 0) {
+      return new Mapped("ebean.l2", tags("op", rest));
+    }
+    String region = rest.substring(0, dot);
+    String op = rest.substring(dot + 1);
+    return new Mapped("ebean.l2", tags("op", op, "region", region));
+  }
+
+  /**
+   * Build a canonical (sorted) {@code key:value,key2:value2} tag string from the given
+   * key/value pairs, skipping null/empty values and sanitising the reserved
+   * delimiter characters from values.
+   */
+  private static String tags(String... keyValues) {
+    List<String> pairs = new ArrayList<>(keyValues.length / 2);
+    for (int i = 0; i + 1 < keyValues.length; i += 2) {
+      String value = keyValues[i + 1];
+      if (value != null && !value.isEmpty()) {
+        pairs.add(keyValues[i] + ':' + sanitize(value));
+      }
+    }
+    Collections.sort(pairs);
+    return String.join(",", pairs);
+  }
+
+  /**
+   * Replace the reserved tag delimiter characters ({@code ,} and {@code :}) so they
+   * cannot break the {@code key:value,key2:value2} encoding.
+   */
+  private static String sanitize(String value) {
+    if (value.indexOf(',') < 0 && value.indexOf(':') < 0) {
+      return value;
+    }
+    return value.replace(',', '_').replace(':', '_');
+  }
+}
@@ -19,6 +19,7 @@ final class MetricsAsJson implements ServerMetricsAsJson {
  private Comparator<MetaTimedMetric> sortBy = SortMetric.NAME;
  private int listCounter;
  private int objKeyCounter;
+  private boolean v2;

  MetricsAsJson(ServerMetrics metrics) {
    this.metrics = metrics;
@@ -67,6 +68,13 @@ final class MetricsAsJson implements ServerMetricsAsJson {
    collect();
  }

+  @Override
+  public void writeV2(Appendable buffer) {
+    this.v2 = true;
+    this.writer = buffer;
+    collect();
+  }
+
  private void collect() {
    try {
      start();
@@ -151,12 +159,26 @@ final class MetricsAsJson implements ServerMetricsAsJson {
  }

  private void metricStart(MetaMetric metric) throws IOException {
+    metricStart(metric, null);
+  }
+
+  private void metricStart(MetaMetric metric, String beanType) throws IOException {
    if (listCounter++ > 0) {
      writer.append(',').append(newLine);
    }
    objStart();
-    key("name");
-    val(metric.name());
+    if (v2) {
+      MetricNamingV2.Mapped mapped = MetricNamingV2.map(metric.name(), beanType);
+      key("name");
+      val(mapped.name());
+      if (!mapped.tags().isEmpty()) {
+        key("tags");
+        val(mapped.tags());
+      }
+    } else {
+      key("name");
+      val(metric.name());
+    }
  }

  private void metricEnd() throws IOException {
@@ -180,7 +202,8 @@ final class MetricsAsJson implements ServerMetricsAsJson {
  }

  private void logQuery(MetaQueryMetric metric) throws IOException {
-    metricStart(metric);
+    Class<?> beanType = metric.type();
+    metricStart(metric, beanType == null ? null : beanType.getSimpleName());
    appendTiming(metric);
    if (withHash) {
      append("hash", metric.hash());
@@ -41,6 +41,17 @@ public interface ServerMetricsAsJson {
   */
  void write(Appendable buffer);

+  /**
+   * Collect and write metrics as "v2" JSON to the given buffer.
+   * <p>
+   * The v2 form uses the canonical label-tag convention: each metric is written with
+   * a family {@code name} (e.g. {@code ebean.query}, {@code ebean.dml}) plus a
+   * {@code tags} string of sorted {@code key:value} pairs (e.g.
+   * {@code "kind:orm,label:Customer.findList,type:Customer"}) rather than the flat
+   * prefixed name. Timing, hash, location and sql attributes are unchanged.
+   */
+  void writeV2(Appendable buffer);
+
  /**
   * Return the metrics in raw JSON.
   */
@@ -34,6 +34,6 @@ public interface MetricFactory extends BootstrapService {
  /**
   * Create a Timed metric.
   */
-  QueryPlanMetric createQueryPlanMetric(Class<?> type, String label, ProfileLocation profileLocation, String sql);
+  QueryPlanMetric createQueryPlanMetric(Class<?> type, String name, String label, ProfileLocation profileLocation, String sql, String hash);

 }
@@ -1,8 +1,8 @@
 package io.ebean.service;

-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.core.JsonToken;
+import io.avaje.json.JsonReader;
+import io.avaje.json.JsonReader.Token;
+import io.avaje.json.JsonWriter;

 import java.io.IOException;
 import java.io.Reader;
@@ -32,12 +32,12 @@ public interface SpiJsonService extends BootstrapService {
  /**
   * Write the nested Map/List as json to the jsonGenerator.
   */
-  void write(Object object, JsonGenerator jsonGenerator) throws IOException;
+  void write(Object object, JsonWriter jsonGenerator) throws IOException;

  /**
   * Write the collection as json array to the jsonGenerator.
   */
-  void writeCollection(Collection<Object> collection, JsonGenerator jsonGenerator) throws IOException;
+  void writeCollection(Collection<Object> collection, JsonWriter jsonGenerator) throws IOException;

  /**
   * Parse the json and return as a Map additionally specifying if the returned map should
@@ -61,17 +61,17 @@ public interface SpiJsonService extends BootstrapService {
  Map<String, Object> parseObject(Reader reader) throws IOException;

  /**
-   * Parse the json and return as a Map taking a JsonParser.
+   * Parse the json and return as a Map taking a JsonReader.
   */
-  Map<String, Object> parseObject(JsonParser parser) throws IOException;
+  Map<String, Object> parseObject(JsonReader parser) throws IOException;

  /**
-   * Parse the json and return as a Map taking a JsonParser and a starting token.
+   * Parse the json and return as a Map taking a JsonReader and a starting token.
   * <p>
   * Used when the first token is checked to see if the value is null prior to calling this.
   * </p>
   */
-  Map<String, Object> parseObject(JsonParser parser, JsonToken token) throws IOException;
+  Map<String, Object> parseObject(JsonReader parser, Token token) throws IOException;

  /**
   * Parse the json and return as a modify aware List.
@@ -89,14 +89,14 @@ public interface SpiJsonService extends BootstrapService {
  List<Object> parseList(Reader reader) throws IOException;

  /**
-   * Parse the json and return as a List taking a JsonParser.
+   * Parse the json and return as a List taking a JsonReader.
   */
-  List<Object> parseList(JsonParser parser) throws IOException;
+  List<Object> parseList(JsonReader parser) throws IOException;

  /**
   * Parse the json returning as a List taking into account the current token.
   */
-  <T> List<T> parseList(JsonParser parser, JsonToken currentToken) throws IOException;
+  <T> List<T> parseList(JsonReader parser, Token currentToken) throws IOException;

  /**
   * Parse the json and return as a List or Map.
@@ -111,7 +111,7 @@ public interface SpiJsonService extends BootstrapService {
  /**
   * Parse the json and return as a List or Map.
   */
-  Object parse(JsonParser parser) throws IOException;
+  Object parse(JsonReader parser) throws IOException;

  /**
   * Parse the json returning a Set that might be modify aware.
@@ -121,5 +121,5 @@ public interface SpiJsonService extends BootstrapService {
  /**
   * Parse the json returning as a Set taking into account the current token.
   */
-  <T> Set<T> parseSet(JsonParser parser, JsonToken currentToken) throws IOException;
+  <T> Set<T> parseSet(JsonReader parser, Token currentToken) throws IOException;
 }
@@ -27,6 +27,13 @@ public interface SpiRawSqlService extends BootstrapService {
   */
  RawSqlBuilder unparsed(String sql);

+  /**
+   * SQL with ${where}/${having} placeholder(s) but no SELECT column parsing.
+   * Supports complex SQL (CTEs, window functions) where keyword parsing would fail.
+   * Explicit column mapping is required (as with unparsed).
+   */
+  RawSqlBuilder withPlaceholders(String sql);
+
  /**
   * Create based on a JDBC ResultSet.
   *
@@ -1,8 +1,7 @@
 package io.ebean.text.json;

-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.core.JsonToken;
+import io.avaje.json.JsonReader;
+import io.avaje.json.JsonReader.Token;
 import io.ebean.XBootstrapService;
 import io.ebean.service.SpiJsonService;

@@ -38,14 +37,14 @@ public class EJson {
  /**
   * Write the nested Map/List as json to the jsonGenerator.
   */
-  public static void write(Object object, JsonGenerator jsonGenerator) throws IOException {
+  public static void write(Object object, io.avaje.json.JsonWriter jsonGenerator) throws IOException {
    plugin.write(object, jsonGenerator);
  }

  /**
   * Write the collection as json array to the jsonGenerator.
   */
-  public static void writeCollection(Collection<Object> collection, JsonGenerator jsonGenerator) throws IOException {
+  public static void writeCollection(Collection<Object> collection, io.avaje.json.JsonWriter jsonGenerator) throws IOException {
    plugin.writeCollection(collection, jsonGenerator);
  }

@@ -79,19 +78,19 @@ public class EJson {
  }

  /**
-   * Parse the json and return as a Map taking a JsonParser.
+   * Parse the json and return as a Map taking a JsonReader.
   */
-  public static Map<String, Object> parseObject(JsonParser parser) throws IOException {
+  public static Map<String, Object> parseObject(JsonReader parser) throws IOException {
    return plugin.parseObject(parser);
  }

  /**
-   * Parse the json and return as a Map taking a JsonParser and a starting token.
+   * Parse the json and return as a Map taking a JsonReader and a starting token.
   * <p>
   * Used when the first token is checked to see if the value is null prior to calling this.
   * </p>
   */
-  public static Map<String, Object> parseObject(JsonParser parser, JsonToken token) throws IOException {
+  public static Map<String, Object> parseObject(JsonReader parser, Token token) throws IOException {
    return plugin.parseObject(parser, token);
  }

@@ -117,16 +116,16 @@ public class EJson {
  }

  /**
-   * Parse the json and return as a List taking a JsonParser.
+   * Parse the json and return as a List taking a JsonReader.
   */
-  public static List<Object> parseList(JsonParser parser) throws IOException {
+  public static List<Object> parseList(JsonReader parser) throws IOException {
    return plugin.parseList(parser);
  }

  /**
   * Parse the json returning as a List taking into account the current token.
   */
-  public static <T> List<T> parseList(JsonParser parser, JsonToken currentToken) throws IOException {
+  public static <T> List<T> parseList(JsonReader parser, Token currentToken) throws IOException {
    return plugin.parseList(parser, currentToken);
  }

@@ -147,7 +146,7 @@ public class EJson {
  /**
   * Parse the json and return as a List or Map.
   */
-  public static Object parse(JsonParser parser) throws IOException {
+  public static Object parse(JsonReader parser) throws IOException {
    return plugin.parse(parser);
  }

@@ -161,7 +160,7 @@ public class EJson {
  /**
   * Parse the json returning as a Set taking into account the current token.
   */
-  public static <T> Set<T> parseSet(JsonParser parser, JsonToken currentToken) throws IOException {
+  public static <T> Set<T> parseSet(JsonReader parser, Token currentToken) throws IOException {
    return plugin.parseSet(parser, currentToken);
  }
 }
@@ -1,6 +1,6 @@
 package io.ebean.text.json;

-import com.fasterxml.jackson.core.JsonParser;
+import io.avaje.json.JsonReader;
 import io.ebean.bean.PersistenceContext;

 /**
@@ -25,9 +25,9 @@ public interface JsonBeanReader<T> {
  }
  
  /**
-   * Create a new reader taking the context from the existing one but using a new JsonParser.
+   * Create a new reader taking the context from the existing one but using a new JsonReader.
   */
-  JsonBeanReader<T> forJson(JsonParser moreJson);
+  JsonBeanReader<T> forJson(JsonReader moreJson);

  /**
   * Add a bean explicitly to the persistence context.
@@ -1,7 +1,6 @@
 package io.ebean.text.json;

-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
+import io.avaje.json.JsonReader;
 import io.ebean.FetchPath;
 import io.ebean.plugin.BeanType;

@@ -49,14 +48,14 @@ public interface JsonContext {
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> T toBean(Class<T> cls, JsonParser parser) throws JsonIOException;
+  <T> T toBean(Class<T> cls, JsonReader parser) throws JsonIOException;

  /**
   * Convert json parser input into a Bean of a specific type additionally using JsonReadOptions..
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> T toBean(Class<T> cls, JsonParser parser, JsonReadOptions options) throws JsonIOException;
+  <T> T toBean(Class<T> cls, JsonReader parser, JsonReadOptions options) throws JsonIOException;

  /**
   * Read json parser input into a given Bean. <br>
@@ -65,19 +64,19 @@ public interface JsonContext {
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> void toBean(T target, JsonParser parser) throws JsonIOException;
+  <T> void toBean(T target, JsonReader parser) throws JsonIOException;

  /**
   * Read json parser input into a given Bean additionally using JsonReadOptions.<br>
-   * See {@link #toBean(Class, JsonParser)} for details modified.
+   * See {@link #toBean(Class, JsonReader)} for details modified.
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> void toBean(T target, JsonParser parser, JsonReadOptions options) throws JsonIOException;
+  <T> void toBean(T target, JsonReader parser, JsonReadOptions options) throws JsonIOException;

  /**
   * Read json reader input into a given Bean.<br>
-   * See {@link #toBean(Class, JsonParser)} for details
+   * See {@link #toBean(Class, JsonReader)} for details
   *
   * @throws JsonIOException When IOException occurs
   */
@@ -85,7 +84,7 @@ public interface JsonContext {

  /**
   * Read json reader input into a given Bean additionally using JsonReadOptions.<br>
-   * See {@link #toBean(Class, JsonParser)} for details modified.
+   * See {@link #toBean(Class, JsonReader)} for details modified.
   *
   * @throws JsonIOException When IOException occurs
   */
@@ -93,7 +92,7 @@ public interface JsonContext {

  /**
   * Read json string input into a given Bean.<br>
-   * See {@link #toBean(Class, JsonParser)} for details
+   * See {@link #toBean(Class, JsonReader)} for details
   *
   * @throws JsonIOException When IOException occurs
   */
@@ -101,7 +100,7 @@ public interface JsonContext {

  /**
   * Read json string input into a given Bean additionally using JsonReadOptions.<br>
-   * See {@link #toBean(Class, JsonParser)} for details
+   * See {@link #toBean(Class, JsonReader)} for details
   *
   * @throws JsonIOException When IOException occurs
   */
@@ -113,7 +112,7 @@ public interface JsonContext {
   * Note that JsonOption provides an option for setting a persistence context and also enabling further lazy loading. Further lazy
   * loading requires a persistence context so if that is set on then a persistence context is created if there is not one set.
   */
-  <T> JsonBeanReader<T> createBeanReader(Class<T> cls, JsonParser parser, JsonReadOptions options) throws JsonIOException;
+  <T> JsonBeanReader<T> createBeanReader(Class<T> cls, JsonReader parser, JsonReadOptions options) throws JsonIOException;

  /**
   * Create and return a new bean reading for the bean type given the JSON options and source.
@@ -122,7 +121,7 @@ public interface JsonContext {
   * further lazy loading. Further lazy loading requires a persistence context so if that is set
   * on then a persistence context is created if there is not one set.
   */
-  <T> JsonBeanReader<T> createBeanReader(BeanType<T> beanType, JsonParser parser, JsonReadOptions options) throws JsonIOException;
+  <T> JsonBeanReader<T> createBeanReader(BeanType<T> beanType, JsonReader parser, JsonReadOptions options) throws JsonIOException;

  /**
   * Convert json string input into a list of beans of a specific type.
@@ -157,14 +156,14 @@ public interface JsonContext {
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> List<T> toList(Class<T> cls, JsonParser json) throws JsonIOException;
+  <T> List<T> toList(Class<T> cls, JsonReader json) throws JsonIOException;

  /**
   * Convert json parser input into a list of beans of a specific type additionally using JsonReadOptions.
   *
   * @throws JsonIOException When IOException occurs
   */
-  <T> List<T> toList(Class<T> cls, JsonParser json, JsonReadOptions options) throws JsonIOException;
+  <T> List<T> toList(Class<T> cls, JsonReader json, JsonReadOptions options) throws JsonIOException;

  /**
   * Use the genericType to determine if this should be converted into a List or
@@ -188,7 +187,7 @@ public interface JsonContext {
   *
   * @throws JsonIOException When IOException occurs
   */
-  Object toObject(Type genericType, JsonParser jsonParser) throws JsonIOException;
+  Object toObject(Type genericType, JsonReader jsonParser) throws JsonIOException;

  /**
   * Return the bean or collection as JSON string.
@@ -212,11 +211,11 @@ public interface JsonContext {
  void toJson(Object value, Writer writer) throws JsonIOException;

  /**
-   * Write the bean or collection to the JsonGenerator.
+   * Write the bean or collection to the JsonWriter.
   *
   * @throws JsonIOException When IOException occurs
   */
-  void toJson(Object value, JsonGenerator generator) throws JsonIOException;
+  void toJson(Object value, io.avaje.json.JsonWriter generator) throws JsonIOException;

  /**
   * Return the bean or collection as JSON string using FetchPath.
@@ -231,15 +230,15 @@ public interface JsonContext {
  void toJson(Object value, Writer writer, FetchPath fetchPath) throws JsonIOException;

  /**
-   * Write the bean or collection to the JsonGenerator using the FetchPath.
+   * Write the bean or collection to the JsonWriter using the FetchPath.
   */
-  void toJson(Object value, JsonGenerator generator, FetchPath fetchPath) throws JsonIOException;
+  void toJson(Object value, io.avaje.json.JsonWriter generator, FetchPath fetchPath) throws JsonIOException;

  /**
   * Deprecated in favour of using PathProperties by itself.
-   * Write json to the JsonGenerator using the JsonWriteOptions.
+   * Write json to the JsonWriter using the JsonWriteOptions.
   */
-  void toJson(Object value, JsonGenerator generator, JsonWriteOptions options) throws JsonIOException;
+  void toJson(Object value, io.avaje.json.JsonWriter generator, JsonWriteOptions options) throws JsonIOException;

  /**
   * Deprecated in favour of using PathProperties by itself.
@@ -264,27 +263,27 @@ public interface JsonContext {
  boolean isSupportedType(Type genericType);

  /**
-   * Create and return a new JsonGenerator for the given writer.
+   * Create and return a new JsonWriter for the given writer.
   *
   * @throws JsonIOException When IOException occurs
   */
-  JsonGenerator createGenerator(Writer writer) throws JsonIOException;
+  io.avaje.json.JsonWriter createGenerator(Writer writer) throws JsonIOException;

  /**
-   * Create and return a new JsonParser for the given reader.
+   * Create and return a new JsonReader for the given reader.
   *
   * @throws JsonIOException When IOException occurs
   */
-  JsonParser createParser(Reader reader) throws JsonIOException;
+  JsonReader createParser(Reader reader) throws JsonIOException;

  /**
-   * Write a scalar types known to Ebean to Jackson.
+   * Write scalar types known to Ebean to JsonWriter.
   * <p>
   * Ebean has built in support for java8 and Joda types as well as the other
   * standard JDK types like URI, URL, UUID etc. This is a fast simple way to
-   * write any of those types to Jackson.
+   * write any of those types.
   * </p>
   */
-  void writeScalar(JsonGenerator generator, Object scalarValue) throws IOException;
+  void writeScalar(io.avaje.json.JsonWriter generator, Object scalarValue) throws IOException;

 }
@@ -1,19 +1,17 @@
 package io.ebean.text.json;

-import com.fasterxml.jackson.core.JsonGenerator;
-
 import java.io.InputStream;
 import java.math.BigDecimal;

 /**
- * Wraps an underlying JsonGenerator taking into account null suppression and exposing isIncludeEmpty() etc.
+ * Wraps an underlying JsonWriter taking into account null suppression and exposing isIncludeEmpty() etc.
 */
 public interface JsonWriter {

  /**
-   * Return the Jackson core JsonGenerator.
+   * Return the underlying JsonWriter.
   */
-  JsonGenerator gen();
+  io.avaje.json.JsonWriter gen();

  /**
   * Return true if null values should be included in JSON output.
@@ -8,6 +8,7 @@ module io.ebean.api {

  requires transitive java.sql;
  requires transitive io.avaje.config;
+  requires transitive io.avaje.json;
  requires transitive org.jspecify;
  requires transitive jakarta.persistence.api;
  requires transitive io.ebean.annotation;
@@ -16,7 +17,6 @@ module io.ebean.api {

  requires static org.slf4j;
  requires static io.ebean.types;
-  requires static com.fasterxml.jackson.core;
  requires static com.fasterxml.jackson.databind;

  exports io.ebean;
@@ -0,0 +1,432 @@
+package io.ebean.common;
+
+import io.ebean.bean.*;
+
+import java.util.*;
+
+/**
+ * Map capable of lazy loading and modification aware.
+ */
+public final class BeanMap<K, E> extends AbstractBeanCollection<E> implements SequencedMap<K, E> {
+
+  private static final long serialVersionUID = 1L;
+
+  /**
+   * The underlying map implementation.
+   */
+  private LinkedHashMap<K, E> map;
+
+  /**
+   * Create with a given Map.
+   */
+  public BeanMap(LinkedHashMap<K, E> map) {
+    this.map = map;
+  }
+
+  /**
+   * Create using a underlying LinkedHashMap.
+   */
+  public BeanMap() {
+    this(new LinkedHashMap<>());
+  }
+
+  public BeanMap(BeanCollectionLoader ebeanServer, EntityBean ownerBean, String propertyName) {
+    super(ebeanServer, ownerBean, propertyName);
+  }
+
+  @Override
+  public Map<K, E> freeze() {
+    return map == null ? null : Collections.unmodifiableMap(map);
+  }
+
+  @Override
+  public void toString(ToStringBuilder builder) {
+    if (map == null || map.isEmpty()) {
+      builder.addRaw("{}");
+    } else {
+      builder.addRaw("{");
+      for (Entry<K, E> entry : map.entrySet()) {
+        builder.add(String.valueOf(entry.getKey()), entry.getValue());
+      }
+      builder.addRaw("}");
+    }
+  }
+
+  @Override
+  public void reset(EntityBean ownerBean, String propertyName) {
+    this.ownerBean = ownerBean;
+    this.propertyName = propertyName;
+    this.map = null;
+  }
+
+  @Override
+  public boolean isSkipSave() {
+    return map == null || (map.isEmpty() && !holdsModifications());
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public void loadFrom(BeanCollection<?> other) {
+    BeanMap<K, E> otherMap = (BeanMap<K, E>) other;
+    internalPutNull();
+    map.putAll(otherMap.actualMap());
+  }
+
+  public void internalPutNull() {
+    if (map == null) {
+      map = new LinkedHashMap<>();
+    }
+  }
+
+  @SuppressWarnings("unchecked")
+  public void internalPut(Object key, Object bean) {
+    if (map == null) {
+      map = new LinkedHashMap<>();
+    }
+    if (key != null) {
+      map.put((K) key, (E) bean);
+    }
+  }
+
+  public void internalPutWithCheck(Object key, Object bean) {
+    if (map == null || key == null || !map.containsKey(key)) {
+      internalPut(key, bean);
+    }
+  }
+
+  @Override
+  public void internalAddWithCheck(Object bean) {
+    throw new RuntimeException("Not allowed for map");
+  }
+
+  @Override
+  public void internalAdd(Object bean) {
+    throw new RuntimeException("Not allowed for map");
+  }
+
+  /**
+   * Return true if the underlying map has been populated. Returns false if it
+   * has a deferred fetch pending.
+   */
+  @Override
+  public boolean isPopulated() {
+    return map != null;
+  }
+
+  /**
+   * Return true if this is a reference (lazy loading) bean collection. This is
+   * the same as !isPopulated();
+   */
+  @Override
+  public boolean isReference() {
+    return map == null;
+  }
+
+  @Override
+  public boolean checkEmptyLazyLoad() {
+    if (map == null) {
+      map = new LinkedHashMap<>();
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  private void initClear() {
+    lock.lock();
+    try {
+      if (map == null) {
+        if (!disableLazyLoad && modifyListening) {
+          lazyLoadCollection(true);
+        } else {
+          map = new LinkedHashMap<>();
+        }
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  private void init() {
+    lock.lock();
+    try {
+      if (map == null) {
+        if (disableLazyLoad) {
+          map = new LinkedHashMap<>();
+        } else {
+          lazyLoadCollection(false);
+        }
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  public LinkedHashMap<K, E> collectionAdd() {
+    if (map == null) {
+      map = new LinkedHashMap<>();
+    }
+    return map;
+  }
+
+  @SuppressWarnings("unchecked")
+  public void refresh(ModifyListenMode modifyListenMode, BeanMap<?, ?> newMap) {
+    setModifyListening(modifyListenMode);
+    this.map = (LinkedHashMap<K, E>) newMap.actualMap();
+  }
+
+  /**
+   * Return the actual underlying map.
+   */
+  public LinkedHashMap<K, E> actualMap() {
+    return map;
+  }
+
+  /**
+   * Returns the collection of beans (map values).
+   */
+  @Override
+  public Collection<E> actualDetails() {
+    return map.values();
+  }
+
+  /**
+   * Returns the map entrySet.
+   */
+  @Override
+  public Collection<?> actualEntries() {
+    return map.entrySet();
+  }
+
+  @Override
+  public String toString() {
+    if (map == null) {
+      return "BeanMap<deferred>";
+    } else {
+      return map.toString();
+    }
+  }
+
+  /**
+   * Equal if object is a Map and equal in a Map sense.
+   */
+  @Override
+  public boolean equals(Object object) {
+    init();
+    return map.equals(object);
+  }
+
+  @Override
+  public int hashCode() {
+    init();
+    return map.hashCode();
+  }
+
+  @Override
+  public void clear() {
+    initClear();
+    if (modifyListening) {
+      // add all beans to the removal list
+      for (E bean : map.values()) {
+        modifyRemoval(bean);
+      }
+    }
+    map.clear();
+  }
+
+  @Override
+  public boolean containsKey(Object key) {
+    init();
+    return map.containsKey(key);
+  }
+
+  @Override
+  public boolean containsValue(Object value) {
+    init();
+    return map.containsValue(value);
+  }
+
+  @Override
+  public Set<Entry<K, E>> entrySet() {
+    init();
+    return modifyListening ? new ModifyEntrySet<>(this, map.entrySet()) : map.entrySet();
+  }
+
+  @Override
+  public E get(Object key) {
+    init();
+    return map.get(key);
+  }
+
+  @Override
+  public boolean isEmpty() {
+    init();
+    return map.isEmpty();
+  }
+
+  @Override
+  public Set<K> keySet() {
+    init();
+    return modifyListening ? new ModifyKeySet<>(this, map.keySet()) : map.keySet();
+  }
+
+  @Override
+  public E put(K key, E value) {
+    init();
+    if (modifyListening) {
+      E oldBean = map.put(key, value);
+      if (value != oldBean) {
+        // register the add of the new and the removal of the old
+        modifyAddition(value);
+        modifyRemoval(oldBean);
+      }
+      return oldBean;
+    } else {
+      return map.put(key, value);
+    }
+  }
+
+  @Override
+  public void putAll(Map<? extends K, ? extends E> puts) {
+    init();
+    if (modifyListening) {
+      for (Entry<? extends K, ? extends E> entry : puts.entrySet()) {
+        Object oldBean = map.put(entry.getKey(), entry.getValue());
+        if (entry.getValue() != oldBean) {
+          modifyAddition(entry.getValue());
+          modifyRemoval(oldBean);
+        }
+      }
+    } else {
+      map.putAll(puts);
+    }
+  }
+
+  @Override
+  public void addBean(E bean) {
+    throw new UnsupportedOperationException("Method not allowed on Map. Please use List instead.");
+  }
+
+  @Override
+  public void removeBean(E bean) {
+    throw new UnsupportedOperationException("Method not allowed on Map. Please use List instead.");
+  }
+
+  @Override
+  public E remove(Object key) {
+    init();
+    if (modifyListening) {
+      E o = map.remove(key);
+      modifyRemoval(o);
+      return o;
+    }
+    return map.remove(key);
+  }
+
+  @Override
+  public int size() {
+    init();
+    return map.size();
+  }
+
+  @Override
+  public Collection<E> values() {
+    init();
+    return modifyListening ? new ModifyCollection<>(this, map.values()) : map.values();
+  }
+
+  // -----------------------------------------------------//
+  // SequencedMap (Java 21+)
+  // -----------------------------------------------------//
+
+  @Override
+  public SequencedMap<K, E> reversed() {
+    init();
+    if (modifyListening) {
+      throw new UnsupportedOperationException("Not supported on modify listening map");
+    }
+    return map.reversed();
+  }
+
+  @Override
+  public Entry<K, E> firstEntry() {
+    init();
+    return map.firstEntry();
+  }
+
+  @Override
+  public Entry<K, E> lastEntry() {
+    init();
+    return map.lastEntry();
+  }
+
+  @Override
+  public Entry<K, E> pollFirstEntry() {
+    init();
+    Entry<K, E> entry = map.pollFirstEntry();
+    if (modifyListening && entry != null) {
+      modifyRemoval(entry.getValue());
+    }
+    return entry;
+  }
+
+  @Override
+  public Entry<K, E> pollLastEntry() {
+    init();
+    Entry<K, E> entry = map.pollLastEntry();
+    if (modifyListening && entry != null) {
+      modifyRemoval(entry.getValue());
+    }
+    return entry;
+  }
+
+  @Override
+  public E putFirst(K key, E value) {
+    init();
+    if (modifyListening) {
+      E oldBean = map.putFirst(key, value);
+      if (value != oldBean) {
+        // register the add of the new and the removal of the old
+        modifyAddition(value);
+        modifyRemoval(oldBean);
+      }
+      return oldBean;
+    } else {
+      return map.putFirst(key, value);
+    }
+  }
+
+  @Override
+  public E putLast(K key, E value) {
+    init();
+    if (modifyListening) {
+      E oldBean = map.putLast(key, value);
+      if (value != oldBean) {
+        // register the add of the new and the removal of the old
+        modifyAddition(value);
+        modifyRemoval(oldBean);
+      }
+      return oldBean;
+    } else {
+      return map.putLast(key, value);
+    }
+  }
+
+  @Override
+  public SequencedSet<K> sequencedKeySet() {
+    init();
+    return map.sequencedKeySet();
+  }
+
+  @Override
+  public SequencedCollection<E> sequencedValues() {
+    init();
+    return map.sequencedValues();
+  }
+
+  @Override
+  public SequencedSet<Entry<K, E>> sequencedEntrySet() {
+    init();
+    return map.sequencedEntrySet();
+  }
+}
@@ -0,0 +1,419 @@
+package io.ebean.common;
+
+import io.ebean.bean.*;
+
+import java.util.*;
+
+/**
+ * Set capable of lazy loading and modification aware.
+ */
+public final class BeanSet<E> extends AbstractBeanCollection<E> implements SequencedSet<E>, BeanCollectionAdd {
+
+  private static final long serialVersionUID = 1L;
+
+  /**
+   * The underlying Set implementation.
+   */
+  private LinkedHashSet<E> set;
+
+  /**
+   * Create with a specific Set implementation.
+   */
+  public BeanSet(LinkedHashSet<E> set) {
+    this.set = set;
+  }
+
+  /**
+   * Create using an underlying LinkedHashSet.
+   */
+  public BeanSet() {
+    this(new LinkedHashSet<>());
+  }
+
+  public BeanSet(BeanCollectionLoader loader, EntityBean ownerBean, String propertyName) {
+    super(loader, ownerBean, propertyName);
+  }
+
+  @Override
+  public Set<E> freeze() {
+    return set == null ? null : Collections.unmodifiableSet(set);
+  }
+
+  @Override
+  public void toString(ToStringBuilder builder) {
+    builder.addCollection(set);
+  }
+
+  @Override
+  public void reset(EntityBean ownerBean, String propertyName) {
+    this.ownerBean = ownerBean;
+    this.propertyName = propertyName;
+    this.set = null;
+  }
+
+  @Override
+  public boolean isSkipSave() {
+    return set == null || (set.isEmpty() && !holdsModifications());
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public void addEntityBean(EntityBean bean) {
+    set.add((E) bean);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public void loadFrom(BeanCollection<?> other) {
+    if (set == null) {
+      set = new LinkedHashSet<>();
+    }
+    set.addAll((Collection<? extends E>) other.actualDetails());
+  }
+
+  @Override
+  public void internalAddWithCheck(Object bean) {
+    // set add() already de-dups so just add it
+    internalAdd(bean);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public void internalAdd(Object bean) {
+    if (set == null) {
+      set = new LinkedHashSet<>();
+    }
+    if (bean != null) {
+      set.add((E) bean);
+    }
+  }
+
+  /**
+   * Returns true if the underlying set has its data.
+   */
+  @Override
+  public boolean isPopulated() {
+    return set != null;
+  }
+
+  /**
+   * Return true if this is a reference (lazy loading) bean collection. This is
+   * the same as !isPopulated();
+   */
+  @Override
+  public boolean isReference() {
+    return set == null;
+  }
+
+  @Override
+  public boolean checkEmptyLazyLoad() {
+    if (set == null) {
+      set = new LinkedHashSet<>();
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  private void initClear() {
+    lock.lock();
+    try {
+      if (set == null) {
+        if (!disableLazyLoad && modifyListening) {
+          lazyLoadCollection(false);
+        } else {
+          set = new LinkedHashSet<>();
+        }
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  private void init() {
+    lock.lock();
+    try {
+      if (set == null) {
+        if (disableLazyLoad) {
+          set = new LinkedHashSet<>();
+        } else {
+          lazyLoadCollection(false);
+        }
+      }
+    } finally {
+      lock.unlock();
+    }
+  }
+
+  public BeanCollectionAdd collectionAdd() {
+    if (set == null) {
+      set = new LinkedHashSet<>();
+    }
+    return this;
+  }
+
+  public void refresh(ModifyListenMode modifyListenMode, BeanSet<E> newSet) {
+    setModifyListening(modifyListenMode);
+    this.set = newSet.actualSet();
+  }
+
+  /**
+   * Return the actual underlying set.
+   */
+  public LinkedHashSet<E> actualSet() {
+    return set;
+  }
+
+  @Override
+  public Collection<E> actualDetails() {
+    return set;
+  }
+
+  @Override
+  public Collection<?> actualEntries() {
+    return set;
+  }
+
+  @Override
+  public String toString() {
+    if (set == null) {
+      return "BeanSet<deferred>";
+    } else {
+      return set.toString();
+    }
+  }
+
+  /**
+   * Equal if obj is a Set and equal in a Set sense.
+   */
+  @Override
+  public boolean equals(Object obj) {
+    init();
+    return set.equals(obj);
+  }
+
+  @Override
+  public int hashCode() {
+    init();
+    return set.hashCode();
+  }
+
+  @Override
+  public void addBean(E bean) {
+    add(bean);
+  }
+
+  @Override
+  public void removeBean(E bean) {
+    if (set.remove(bean)) {
+      getModifyHolder().modifyRemoval(bean);
+    }
+  }
+
+  // -----------------------------------------------------//
+  // proxy method for map
+  // -----------------------------------------------------//
+
+  @Override
+  public boolean add(E bean) {
+    init();
+    if (modifyListening) {
+      if (set.add(bean)) {
+        modifyAddition(bean);
+        return true;
+      } else {
+        return false;
+      }
+    }
+    return set.add(bean);
+  }
+
+  @Override
+  public boolean addAll(Collection<? extends E> beans) {
+    init();
+    if (modifyListening) {
+      boolean changed = false;
+      for (E bean : beans) {
+        if (set.add(bean)) {
+          // register the addition of the bean
+          modifyAddition(bean);
+          changed = true;
+        }
+      }
+      return changed;
+    }
+    return set.addAll(beans);
+  }
+
+  @Override
+  public void clear() {
+    initClear();
+    if (modifyListening) {
+      for (E bean : set) {
+        modifyRemoval(bean);
+      }
+    }
+    set.clear();
+  }
+
+  @Override
+  public boolean contains(Object bean) {
+    init();
+    return set.contains(bean);
+  }
+
+  @Override
+  public boolean containsAll(Collection<?> beans) {
+    init();
+    return set.containsAll(beans);
+  }
+
+  @Override
+  public boolean isEmpty() {
+    init();
+    return set.isEmpty();
+  }
+
+  @Override
+  public Iterator<E> iterator() {
+    init();
+    if (modifyListening) {
+      return new ModifyIterator<>(this, set.iterator());
+    }
+    return set.iterator();
+  }
+
+  @Override
+  public boolean remove(Object bean) {
+    init();
+    if (modifyListening) {
+      if (set.remove(bean)) {
+        modifyRemoval(bean);
+        return true;
+      }
+      return false;
+    }
+    return set.remove(bean);
+  }
+
+  @Override
+  public boolean removeAll(Collection<?> beans) {
+    init();
+    if (modifyListening) {
+      boolean changed = false;
+      for (Object bean : beans) {
+        if (set.remove(bean)) {
+          modifyRemoval(bean);
+          changed = true;
+        }
+      }
+      return changed;
+    }
+    return set.removeAll(beans);
+  }
+
+  @Override
+  public boolean retainAll(Collection<?> beans) {
+    init();
+    if (modifyListening) {
+      boolean changed = false;
+      Iterator<?> it = set.iterator();
+      while (it.hasNext()) {
+        Object bean = it.next();
+        if (!beans.contains(bean)) {
+          // not retaining this bean so add it to the removal list
+          it.remove();
+          modifyRemoval(bean);
+          changed = true;
+        }
+      }
+      return changed;
+    }
+    return set.retainAll(beans);
+  }
+
+  @Override
+  public int size() {
+    init();
+    return set.size();
+  }
+
+  @Override
+  public Object[] toArray() {
+    init();
+    return set.toArray();
+  }
+
+  @Override
+  public <T> T[] toArray(T[] array) {
+    init();
+    //noinspection SuspiciousToArrayCall
+    return set.toArray(array);
+  }
+
+  // -----------------------------------------------------//
+  // SequencedSet (Java 21+)
+  // -----------------------------------------------------//
+
+  @Override
+  public SequencedSet<E> reversed() {
+    init();
+    if (modifyListening) {
+      throw new UnsupportedOperationException("Not supported on modify listening set");
+    }
+    return set.reversed();
+  }
+
+  @Override
+  public void addFirst(E bean) {
+    init();
+    if (modifyListening) {
+      modifyAddition(bean);
+    }
+    set.addFirst(bean);
+  }
+
+  @Override
+  public void addLast(E bean) {
+    init();
+    if (modifyListening) {
+      modifyAddition(bean);
+    }
+    set.addLast(bean);
+  }
+
+  @Override
+  public E getFirst() {
+    init();
+    return set.getFirst();
+  }
+
+  @Override
+  public E getLast() {
+    init();
+    return set.getLast();
+  }
+
+  @Override
+  public E removeFirst() {
+    init();
+    if (modifyListening) {
+      E bean = set.removeFirst();
+      modifyRemoval(bean);
+      return bean;
+    }
+    return set.removeFirst();
+  }
+
+  @Override
+  public E removeLast() {
+    init();
+    if (modifyListening) {
+      E bean = set.removeLast();
+      modifyRemoval(bean);
+      return bean;
+    }
+    return set.removeLast();
+  }
+
+}
@@ -136,13 +136,13 @@ class ToStringBuilderTest {
  @Test
  void beanSet_null_empty() {
    assertThat(toStringFor(new BeanSet<String>(null))).isEqualTo("[]");
-    assertThat(toStringFor(new BeanSet<String>(Collections.emptySet()))).isEqualTo("[]");
+    assertThat(toStringFor(new BeanSet<String>(new LinkedHashSet<>()))).isEqualTo("[]");
  }

  @Test
  void beanMap_null_empty() {
    assertThat(toStringFor(new BeanMap<String, String>(null))).isEqualTo("{}");
-    assertThat(toStringFor(new BeanMap<String, String>(Collections.emptyMap()))).isEqualTo("{}");
+    assertThat(toStringFor(new BeanMap<String, String>(new LinkedHashMap<>()))).isEqualTo("{}");
  }

  @Test
@@ -159,7 +159,7 @@ class ToStringBuilderTest {

  @Test
  void beanMap_some() {
-    Map<String, Recurse> under = new LinkedHashMap<>();
+    var under = new LinkedHashMap<String, Recurse>();
    under.put("a", new Recurse(1, "a"));
    under.put("b", new Recurse(2, "b"));
    BeanMap<String, Recurse> list = new BeanMap<>(under);
@@ -0,0 +1,46 @@
+package io.ebean.meta;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MetaInfoManagerTest {
+
+  @Test
+  void collectMetricsBooleanDefaultsToCollectMetrics() {
+    ServerMetrics metrics = new BasicMetricVisitor();
+    MetaInfoManager manager = new MetaInfoManager() {
+      @Override
+      public ServerMetrics collectMetrics() {
+        return metrics;
+      }
+
+      @Override
+      public void visitMetrics(MetricVisitor visitor) {
+      }
+
+      @Override
+      public BasicMetricVisitor visitBasic() {
+        return new BasicMetricVisitor();
+      }
+
+      @Override
+      public void resetAllMetrics() {
+      }
+
+      @Override
+      public List<MetaQueryPlan> queryPlanInit(QueryPlanInit initRequest) {
+        return List.of();
+      }
+
+      @Override
+      public List<MetaQueryPlan> queryPlanCollectNow(QueryPlanRequest request) {
+        return List.of();
+      }
+    };
+
+    assertThat(manager.collectMetrics(false)).isSameAs(metrics);
+  }
+}
@@ -0,0 +1,93 @@
+package io.ebean.meta;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MetricNamingV2Test {
+
+  private MetricNamingV2.Mapped map(String name, String beanType) {
+    return MetricNamingV2.map(name, beanType);
+  }
+
+  @Test
+  void orm_withBeanType() {
+    MetricNamingV2.Mapped m = map("orm.Customer.findList", "Customer");
+    assertThat(m.name()).isEqualTo("ebean.query");
+    assertThat(m.tags()).isEqualTo("kind:orm,label:Customer.findList,type:Customer");
+  }
+
+  @Test
+  void orm_withoutBeanType() {
+    MetricNamingV2.Mapped m = map("orm.Customer.findList", null);
+    assertThat(m.name()).isEqualTo("ebean.query");
+    assertThat(m.tags()).isEqualTo("kind:orm,label:Customer.findList");
+  }
+
+  @Test
+  void dto_andSql() {
+    assertThat(map("dto.CustomerDto.findRecent", "CustomerDto").tags())
+      .isEqualTo("kind:dto,label:CustomerDto.findRecent,type:CustomerDto");
+    assertThat(map("sql.query.fooBar", "Customer").tags())
+      .isEqualTo("kind:sql,label:query.fooBar,type:Customer");
+  }
+
+  @Test
+  void iud() {
+    MetricNamingV2.Mapped m = map("iud.User.save", null);
+    assertThat(m.name()).isEqualTo("ebean.dml");
+    assertThat(m.tags()).isEqualTo("label:User.save");
+  }
+
+  @Test
+  void txn_named_and_plain() {
+    assertThat(map("txn.named.ProcessJob", null).name()).isEqualTo("ebean.txn");
+    assertThat(map("txn.named.ProcessJob", null).tags()).isEqualTo("label:ProcessJob");
+    assertThat(map("txn.main", null).tags()).isEqualTo("label:main");
+  }
+
+  @Test
+  void l2_regionAndOp() {
+    MetricNamingV2.Mapped m = map("l2.customer.hit", null);
+    assertThat(m.name()).isEqualTo("ebean.l2");
+    assertThat(m.tags()).isEqualTo("op:hit,region:customer");
+  }
+
+  @Test
+  void l2_opOnly() {
+    assertThat(map("l2.hit", null).tags()).isEqualTo("op:hit");
+  }
+
+  @Test
+  void unrecognisedPrefix_isOther() {
+    MetricNamingV2.Mapped m = map("l2n.Customer.hit", null);
+    assertThat(m.name()).isEqualTo("ebean.other");
+    assertThat(m.tags()).isEqualTo("label:l2n.Customer.hit");
+  }
+
+  @Test
+  void noDot_isOther() {
+    assertThat(map("jvm", null).name()).isEqualTo("ebean.other");
+    assertThat(map("jvm", null).tags()).isEqualTo("label:jvm");
+  }
+
+  @Test
+  void nullOrEmpty() {
+    assertThat(map(null, null).name()).isEqualTo("ebean.other");
+    assertThat(map(null, null).tags()).isEmpty();
+    assertThat(map("", null).tags()).isEmpty();
+  }
+
+  @Test
+  void sanitisesReservedChars() {
+    MetricNamingV2.Mapped m = map("orm.Customer.weird", "Cust:om,er");
+    assertThat(m.tags()).isEqualTo("kind:orm,label:Customer.weird,type:Cust_om_er");
+  }
+
+  @Test
+  void tagsAreSortedByKey() {
+    // kind < label < type alphabetically regardless of build order
+    assertThat(map("orm.X.find", "Bean").tags())
+      .isEqualTo("kind:orm,label:X.find,type:Bean");
+  }
+}
@@ -0,0 +1,166 @@
+package io.ebean.meta;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class MetricsAsJsonV2Test {
+
+  @Test
+  void writeV2_usesFamilyNamesAndTags() {
+    ServerMetrics metrics = new FakeServerMetrics();
+    StringBuilder sb = new StringBuilder();
+    new MetricsAsJson(metrics).writeV2(sb);
+    String json = sb.toString();
+
+    assertThat(json).contains("\"db\":\"db1\"");
+    // query metric -> ebean.query with kind/type/label tags
+    assertThat(json).contains("\"name\":\"ebean.query\"");
+    assertThat(json).contains("\"tags\":\"kind:orm,label:Customer.findList,type:Customer\"");
+    // timed iud metric -> ebean.dml
+    assertThat(json).contains("\"name\":\"ebean.dml\"");
+    assertThat(json).contains("\"tags\":\"label:User.save\"");
+    // count metric (l2n not specially mapped) -> ebean.other
+    assertThat(json).contains("\"name\":\"ebean.other\"");
+    assertThat(json).contains("\"tags\":\"label:l2n.Customer.hit\"");
+  }
+
+  @Test
+  void write_v1_unchanged_usesFlatNames() {
+    ServerMetrics metrics = new FakeServerMetrics();
+    StringBuilder sb = new StringBuilder();
+    new MetricsAsJson(metrics).write(sb);
+    String json = sb.toString();
+
+    assertThat(json).contains("\"name\":\"orm.Customer.findList\"");
+    assertThat(json).contains("\"name\":\"iud.User.save\"");
+    assertThat(json).doesNotContain("\"tags\"");
+  }
+
+  static final class FakeServerMetrics implements ServerMetrics {
+    @Override
+    public String name() {
+      return "db1";
+    }
+
+    @Override
+    public ServerMetricsAsJson asJson() {
+      return new MetricsAsJson(this);
+    }
+
+    @Override
+    public List<MetricData> asData() {
+      return new java.util.ArrayList<>();
+    }
+
+    @Override
+    public List<MetaTimedMetric> timedMetrics() {
+      return new java.util.ArrayList<>(List.of(new FakeTimed("iud.User.save")));
+    }
+
+    @Override
+    public List<MetaQueryMetric> queryMetrics() {
+      return new java.util.ArrayList<>(List.of(new FakeQuery("orm.Customer.findList", Customer.class)));
+    }
+
+    @Override
+    public List<MetaCountMetric> countMetrics() {
+      return new java.util.ArrayList<>(List.of(new FakeCount("l2n.Customer.hit")));
+    }
+  }
+
+  static class Customer {
+  }
+
+  static class FakeTimed implements MetaTimedMetric {
+    private final String name;
+
+    FakeTimed(String name) {
+      this.name = name;
+    }
+
+    @Override
+    public String name() {
+      return name;
+    }
+
+    @Override
+    public String location() {
+      return null;
+    }
+
+    @Override
+    public long count() {
+      return 3;
+    }
+
+    @Override
+    public long total() {
+      return 30;
+    }
+
+    @Override
+    public long max() {
+      return 20;
+    }
+
+    @Override
+    public long mean() {
+      return 10;
+    }
+
+    @Override
+    public boolean initialCollection() {
+      return false;
+    }
+  }
+
+  static final class FakeQuery extends FakeTimed implements MetaQueryMetric {
+    private final Class<?> type;
+
+    FakeQuery(String name, Class<?> type) {
+      super(name);
+      this.type = type;
+    }
+
+    @Override
+    public Class<?> type() {
+      return type;
+    }
+
+    @Override
+    public String label() {
+      return null;
+    }
+
+    @Override
+    public String sql() {
+      return null;
+    }
+
+    @Override
+    public String hash() {
+      return "h1";
+    }
+  }
+
+  static final class FakeCount implements MetaCountMetric {
+    private final String name;
+
+    FakeCount(String name) {
+      this.name = name;
+    }
+
+    @Override
+    public String name() {
+      return name;
+    }
+
+    @Override
+    public long count() {
+      return 5;
+    }
+  }
+}
@@ -6,7 +6,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>

  <artifactId>ebean-bench</artifactId>
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>

  <name>ebean bom</name>
@@ -89,25 +89,25 @@
      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-api</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-core</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-core-type</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
@@ -125,13 +125,13 @@
      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-jackson-mapper</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-ddl-generator</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
@@ -155,37 +155,37 @@
      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-querybean</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>querybean-generator</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>kotlin-querybean-generator</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-test</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-redis</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-spring-txn</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <!-- platforms -->
@@ -193,91 +193,91 @@
      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-clickhouse</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-db2</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-h2</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-hana</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-mariadb</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-mysql</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-nuodb</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-oracle</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-postgres</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-postgis</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-postgis-types</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-pgvector</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-pgvector-types</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-sqlite</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

      <dependency>
        <groupId>io.ebean</groupId>
        <artifactId>ebean-sqlserver</artifactId>
-        <version>16.6.0</version>
+        <version>18.2.0</version>
      </dependency>

    </dependencies>
@@ -3,7 +3,7 @@
  <parent>
    <groupId>io.ebean</groupId>
    <artifactId>ebean-parent</artifactId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>
  <artifactId>ebean-core-json</artifactId>
  <name>ebean-core-json</name>
@@ -16,15 +16,13 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

-    <!-- Jackson core used internally by Ebean -->
    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>${jackson.version}</version>
-      <optional>true</optional>
+      <groupId>io.avaje</groupId>
+      <artifactId>avaje-json-core</artifactId>
+      <version>${avaje-json-core.version}</version>
    </dependency>

  </dependencies>
@@ -1,190 +1,170 @@
 package io.ebeaninternal.json;

-import com.fasterxml.jackson.core.JsonGenerator;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.core.JsonToken;
+import io.avaje.json.JsonReader;
+import io.avaje.json.JsonReader.Token;
+import io.avaje.json.JsonWriter;
+import io.avaje.json.mapper.JsonMapper;
+import io.avaje.json.stream.JsonStream;
 import io.ebean.service.SpiJsonService;

 import java.io.IOException;
 import java.io.Reader;
+import java.io.StringWriter;
 import java.io.Writer;
-import java.util.*;
+import java.util.Collection;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;

 /**
 * Utility that converts between JSON content and simple java Maps/Lists.
+ * <p>
+ * Backed by avaje {@link JsonMapper} using {@link EbeanJsonAdapter} which
+ * preserves Ebean's modify-aware collection and number semantics.
 */
 public final class DJsonService implements SpiJsonService {

-  /**
-   * Write the nested Map/List as json.
-   */
+  private static final JsonStream JSON_STREAM = JsonStream.builder().build();
+  private static final JsonMapper MAPPER = JsonMapper.builder().jsonStream(JSON_STREAM).build();
+
+  private static final JsonMapper.Type<Object> PLAIN = MAPPER.type(EbeanJsonAdapter.PLAIN);
+  private static final JsonMapper.Type<Object> MODIFY_AWARE = MAPPER.type(EbeanJsonAdapter.MODIFY_AWARE);
+
+  private static JsonMapper.Type<Object> type(boolean modifyAware) {
+    return modifyAware ? MODIFY_AWARE : PLAIN;
+  }
+
+  private static boolean blank(String content) {
+    return content == null || content.trim().isEmpty();
+  }
+
+  private static String readAll(Reader reader) throws IOException {
+    StringBuilder builder = new StringBuilder();
+    char[] buffer = new char[2048];
+    int len;
+    while ((len = reader.read(buffer)) != -1) {
+      builder.append(buffer, 0, len);
+    }
+    return builder.toString();
+  }
+
  @Override
  public String write(Object object) throws IOException {
-    return EJsonWriter.write(object);
+    StringWriter writer = new StringWriter();
+    write(object, writer);
+    return writer.toString();
  }

-  /**
-   * Write the nested Map/List as json to the writer.
-   */
  @Override
  public void write(Object object, Writer writer) throws IOException {
-    EJsonWriter.write(object, writer);
+    JsonWriter jsonWriter = JSON_STREAM.writer(writer);
+    jsonWriter.serializeNulls(true);
+    PLAIN.toJson(object, jsonWriter);
+    jsonWriter.flush();
  }

-  /**
-   * Write the nested Map/List as json to the jsonGenerator.
-   */
  @Override
-  public void write(Object object, JsonGenerator jsonGenerator) throws IOException {
-    EJsonWriter.write(object, jsonGenerator);
+  public void write(Object object, JsonWriter jsonWriter) throws IOException {
+    PLAIN.toJson(object, jsonWriter);
  }

-  /**
-   * Write the collection as json array to the jsonGenerator.
-   */
  @Override
-  public void writeCollection(Collection<Object> collection, JsonGenerator jsonGenerator) throws IOException {
-    EJsonWriter.writeCollection(collection, jsonGenerator);
+  public void writeCollection(Collection<Object> collection, JsonWriter jsonWriter) throws IOException {
+    EbeanJsonAdapter.writeCollection(jsonWriter, collection);
  }

-  /**
-   * Parse the json and return as a Map additionally specifying if the returned map should be modify
-   * aware meaning that it can detect when it has been modified.
-   */
-  @Override
-  public Map<String, Object> parseObject(String json, boolean modifyAware) throws IOException {
-    return EJsonReader.parseObject(json, modifyAware);
-  }
-
-  /**
-   * Parse the json and return as a Map.
-   */
-  @Override
-  public Map<String, Object> parseObject(String json) throws IOException {
-    return EJsonReader.parseObject(json);
-  }
-
-  /**
-   * Parse the json and return as a Map taking a reader.
-   */
-  @Override
-  public Map<String, Object> parseObject(Reader reader, boolean modifyAware) throws IOException {
-    return EJsonReader.parseObject(reader, modifyAware);
-  }
-
-  /**
-   * Parse the json and return as a Map taking a reader.
-   */
-  @Override
-  public Map<String, Object> parseObject(Reader reader) throws IOException {
-    return EJsonReader.parseObject(reader);
-  }
-
-  /**
-   * Parse the json and return as a Map taking a JsonParser.
-   */
-  @Override
-  public Map<String, Object> parseObject(JsonParser parser) throws IOException {
-    return EJsonReader.parseObject(parser);
-  }
-
-  /**
-   * Parse the json and return as a Map taking a JsonParser and a starting token.
-   *
-   * <p>Used when the first token is checked to see if the value is null prior to calling this.
-   */
-  @Override
-  public Map<String, Object> parseObject(JsonParser parser, JsonToken token) throws IOException {
-    return EJsonReader.parseObject(parser, token);
-  }
-
-  /**
-   * Parse the json and return as a modify aware List.
-   */
-  @Override
-  public <T> List<T> parseList(String json, boolean modifyAware) throws IOException {
-    return EJsonReader.parseList(json, modifyAware);
-  }
-
-  /**
-   * Parse the json and return as a List.
-   */
-  @Override
-  public List<Object> parseList(String json) throws IOException {
-    return EJsonReader.parseList(json);
-  }
-
-  /**
-   * Parse the json and return as a List taking a Reader.
-   */
-  @Override
-  public List<Object> parseList(Reader reader) throws IOException {
-    return EJsonReader.parseList(reader);
-  }
-
-  /**
-   * Parse the json and return as a List taking a JsonParser.
-   */
-  @Override
-  public List<Object> parseList(JsonParser parser) throws IOException {
-    return EJsonReader.parseList(parser, false);
-  }
-
-  /**
-   * Parse the json returning as a List taking into account the current token.
-   */
  @Override
  @SuppressWarnings("unchecked")
-  public <T> List<T> parseList(JsonParser parser, JsonToken currentToken) throws IOException {
-    return (List<T>) EJsonReader.parse(parser, currentToken, false);
+  public Map<String, Object> parseObject(String json, boolean modifyAware) throws IOException {
+    return blank(json) ? null : (Map<String, Object>) type(modifyAware).fromJson(json);
+  }
+
+  @Override
+  public Map<String, Object> parseObject(String json) throws IOException {
+    return parseObject(json, false);
+  }
+
+  @Override
+  public Map<String, Object> parseObject(Reader reader, boolean modifyAware) throws IOException {
+    return parseObject(readAll(reader), modifyAware);
+  }
+
+  @Override
+  public Map<String, Object> parseObject(Reader reader) throws IOException {
+    return parseObject(reader, false);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public Map<String, Object> parseObject(JsonReader parser) throws IOException {
+    return (Map<String, Object>) PLAIN.fromJson(parser);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public Map<String, Object> parseObject(JsonReader parser, Token token) throws IOException {
+    return (Map<String, Object>) EbeanJsonAdapter.read(parser, token, false);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public <T> List<T> parseList(String json, boolean modifyAware) throws IOException {
+    return blank(json) ? null : (List<T>) type(modifyAware).fromJson(json);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public List<Object> parseList(String json) throws IOException {
+    return (List<Object>) parseList(json, false);
+  }
+
+  @Override
+  public List<Object> parseList(Reader reader) throws IOException {
+    return parseList(readAll(reader));
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public List<Object> parseList(JsonReader parser) throws IOException {
+    return (List<Object>) PLAIN.fromJson(parser);
+  }
+
+  @Override
+  @SuppressWarnings("unchecked")
+  public <T> List<T> parseList(JsonReader parser, Token currentToken) throws IOException {
+    return (List<T>) EbeanJsonAdapter.read(parser, currentToken, false);
  }

-  /**
-   * Parse the json and return as a List or Map.
-   */
  @Override
  public Object parse(String json) throws IOException {
-    return EJsonReader.parse(json);
+    return blank(json) ? null : PLAIN.fromJson(json);
  }

-  /**
-   * Parse the json and return as a List or Map.
-   */
  @Override
  public Object parse(Reader reader) throws IOException {
-    return EJsonReader.parse(reader);
+    return parse(readAll(reader));
  }

-  /**
-   * Parse the json and return as a List or Map.
-   */
  @Override
-  public Object parse(JsonParser parser) throws IOException {
-    return EJsonReader.parse(parser);
+  public Object parse(JsonReader parser) throws IOException {
+    return PLAIN.fromJson(parser);
  }

-  /**
-   * Parse the json returning a Set that might be modify aware.
-   */
  @Override
  public <T> Set<T> parseSet(String json, boolean modifyAware) throws IOException {
    List<T> list = parseList(json, modifyAware);
    if (list == null) {
      return null;
    }
-
    if (modifyAware) {
      return ((ModifyAwareList<T>) list).asSet();
-    } else {
-      return new LinkedHashSet<>(list);
    }
+    return new LinkedHashSet<>(list);
  }

-  /**
-   * Parse the json returning as a Set taking into account the current token.
-   */
  @Override
-  public <T> Set<T> parseSet(JsonParser parser, JsonToken currentToken) throws IOException {
+  public <T> Set<T> parseSet(JsonReader parser, Token currentToken) throws IOException {
    return new LinkedHashSet<>(parseList(parser, currentToken));
  }
 }
@@ -1,356 +0,0 @@
-package io.ebeaninternal.json;
-
-import com.fasterxml.jackson.core.JsonFactory;
-import com.fasterxml.jackson.core.JsonParser;
-import com.fasterxml.jackson.core.JsonToken;
-import io.ebean.ModifyAwareType;
-
-import java.io.IOException;
-import java.io.Reader;
-import java.io.StringReader;
-import java.util.*;
-
-final class EJsonReader {
-
-  static final JsonFactory json = new JsonFactory();
-  private final JsonParser parser;
-  private final boolean modifyAware;
-  private final ModifyAwareFlag modifyAwareOwner;
-  private int depth;
-  private Stack stack;
-  private Context currentContext;
-
-  EJsonReader(JsonParser parser, boolean modifyAware) {
-    this.parser = parser;
-    this.modifyAware = modifyAware;
-    this.modifyAwareOwner = modifyAware ? new ModifyAwareFlag() : null;
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(String json, boolean modifyAware) throws IOException {
-    return (Map<String, Object>) parse(json, modifyAware);
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(String json) throws IOException {
-    return (Map<String, Object>) parse(json);
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(Reader reader) throws IOException {
-    return (Map<String, Object>) parse(reader);
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(Reader reader, boolean modifyAware) throws IOException {
-    return (Map<String, Object>) parse(reader, modifyAware);
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(JsonParser parser) throws IOException {
-    return (Map<String, Object>) parse(parser);
-  }
-
-  @SuppressWarnings("unchecked")
-  static Map<String, Object> parseObject(JsonParser parser, JsonToken token) throws IOException {
-    return (Map<String, Object>) parse(parser, token, false);
-  }
-
-  @SuppressWarnings("unchecked")
-  static <T> List<T> parseList(String json, boolean modifyAware) throws IOException {
-    return (List<T>) parse(json, modifyAware);
-  }
-
-  @SuppressWarnings("unchecked")
-  static List<Object> parseList(String json) throws IOException {
-    return (List<Object>) parse(json);
-  }
-
-  @SuppressWarnings("unchecked")
-  static List<Object> parseList(Reader reader) throws IOException {
-    return (List<Object>) parse(reader);
-  }
-
-  @SuppressWarnings("unchecked")
-  static List<Object> parseList(JsonParser parser, boolean modifyAware) throws IOException {
-    return (List<Object>) parse(parser, modifyAware);
-  }
-
-  static Object parse(String json) throws IOException {
-    if (json == null) {
-      return null;
-    }
-    return parse(new StringReader(json));
-  }
-
-  static Object parse(String json, boolean modifyAware) throws IOException {
-    if (json == null) {
-      return null;
-    }
-    return parse(new StringReader(json), modifyAware);
-  }
-
-  static Object parse(Reader reader) throws IOException {
-    return parse(json.createParser(reader));
-  }
-
-  static Object parse(Reader reader, boolean modifyAware) throws IOException {
-    return parse(json.createParser(reader), modifyAware);
-  }
-
-  static Object parse(JsonParser parser) throws IOException {
-    return parse(parser, null, false);
-  }
-
-  static Object parse(JsonParser parser, boolean modifyAware) throws IOException {
-    return parse(parser, null, modifyAware);
-  }
-
-  static Object parse(JsonParser parser, JsonToken token, boolean modifyAware) throws IOException {
-    return new EJsonReader(parser, modifyAware).parseJson(token);
-  }
-
-  private void startArray() {
-    depth++;
-    stack.push(currentContext);
-    currentContext = modifyAware ? new ArrayContext(modifyAwareOwner) : new ArrayContext();
-  }
-
-  private void startObject() {
-    depth++;
-    stack.push(currentContext);
-    currentContext = modifyAware ? new ObjectContext(modifyAwareOwner) : new ObjectContext();
-  }
-
-  private void endArray() {
-    end();
-  }
-
-  private void endObject() {
-    end();
-  }
-
-  private void end() {
-    depth--;
-    if (!stack.isEmpty()) {
-      currentContext = stack.pop(currentContext);
-    }
-    if (modifyAwareOwner != null) {
-      modifyAwareOwner.setMarkedDirty(false);
-    }
-  }
-
-  private void setValue(Object value) {
-    currentContext.setValue(value);
-  }
-
-  private void setValueNull() {
-    currentContext.setValueNull();
-  }
-
-  private Object parseJson(JsonToken token) throws IOException {
-
-    if (token == null) {
-      token = parser.nextToken();
-      // if it is a simple value just return it
-      switch (token) {
-        case VALUE_NULL:
-          return null;
-        case VALUE_FALSE:
-          return Boolean.FALSE;
-        case VALUE_TRUE:
-          return Boolean.TRUE;
-        case VALUE_STRING:
-          return parser.getText();
-        case VALUE_NUMBER_INT:
-          return parser.getLongValue();
-        case VALUE_NUMBER_FLOAT:
-          return parser.getDecimalValue();
-      }
-    }
-
-    // it is a object or array, process the first JsonToken
-    stack = new Stack();
-    processJsonToken(token);
-
-    // process the rest of the object or array
-    while (depth > 0) {
-      token = parser.nextToken();
-      processJsonToken(token);
-    }
-
-    return currentContext.getValue();
-  }
-
-  /**
-   * Process the JsonToken for objects and arrays.
-   */
-  private void processJsonToken(JsonToken token) throws IOException {
-    switch (token) {
-      case START_ARRAY:
-        startArray();
-        break;
-
-      case START_OBJECT:
-        startObject();
-        break;
-
-      case FIELD_NAME:
-        currentContext.setKey(parser.getCurrentName());
-        break;
-
-      case VALUE_STRING:
-        setValue(parser.getValueAsString());
-        break;
-
-      case VALUE_NUMBER_INT:
-        setValue(parser.getLongValue());
-        break;
-
-      case VALUE_NUMBER_FLOAT:
-        setValue(parser.getDecimalValue());
-        break;
-
-      case VALUE_TRUE:
-        setValue(Boolean.TRUE);
-        break;
-
-      case VALUE_FALSE:
-        setValue(Boolean.FALSE);
-        break;
-
-      case VALUE_NULL:
-        setValueNull();
-        break;
-
-      case END_OBJECT:
-        endObject();
-        break;
-
-      case END_ARRAY:
-        endArray();
-        break;
-
-      default:
-        break;
-    }
-  }
-
-  private static final class Stack {
-
-    private Context head;
-
-    private void push(Context context) {
-      if (context != null) {
-        context.next = head;
-        head = context;
-      }
-    }
-
-    private Context pop(Context endingContext) {
-      if (head == null) {
-        throw new NoSuchElementException();
-      }
-      Context temp = head;
-      head = head.next;
-      temp.popContext(endingContext);
-      return temp;
-    }
-
-    private boolean isEmpty() {
-      return head == null;
-    }
-  }
-
-  private abstract static class Context {
-    Context next;
-
-    abstract void popContext(Context temp);
-
-    abstract Object getValue();
-
-    abstract void setValue(Object value);
-
-    abstract void setKey(String key);
-
-    abstract void setValueNull();
-  }
-
-  private static class ObjectContext extends Context {
-
-    private final Map<String, Object> map;
-
-    private String key;
-
-    ObjectContext() {
-      map = new LinkedHashMap<>();
-    }
-
-    ObjectContext(ModifyAwareType owner) {
-      map = new ModifyAwareMap<>(owner, new LinkedHashMap<>());
-    }
-
-    @Override
-    public void popContext(Context temp) {
-      setValue(temp.getValue());
-    }
-
-    @Override
-    Object getValue() {
-      return map;
-    }
-
-    @Override
-    void setValue(Object value) {
-      map.put(key, value);
-    }
-
-    @Override
-    void setKey(String key) {
-      this.key = key;
-    }
-
-    @Override
-    void setValueNull() {
-      map.put(key, null);
-    }
-  }
-
-  private static class ArrayContext extends Context {
-
-    private final List<Object> values;
-
-    ArrayContext() {
-      values = new ArrayList<>();
-    }
-
-    ArrayContext(ModifyAwareType owner) {
-      values = new ModifyAwareList<>(owner, new ArrayList<>());
-    }
-
-    @Override
-    public void popContext(Context temp) {
-      values.add(temp.getValue());
-    }
-
-    @Override
-    Object getValue() {
-      return values;
-    }
-
-    @Override
-    void setValue(Object value) {
-      values.add(value);
-    }
-
-    @Override
-    void setValueNull() {
-      // ignore
-    }
-
-    @Override
-    void setKey(String key) {
-      // not expected
-    }
-  }
-}
@@ -1,212 +0,0 @@
-package io.ebeaninternal.json;
-
-import com.fasterxml.jackson.core.JsonFactory;
-import com.fasterxml.jackson.core.JsonGenerator;
-
-import java.io.IOException;
-import java.io.StringWriter;
-import java.io.Writer;
-import java.math.BigDecimal;
-import java.math.BigInteger;
-import java.util.Collection;
-import java.util.Date;
-import java.util.Map;
-import java.util.Map.Entry;
-import java.util.Set;
-
-final class EJsonWriter {
-
-  /**
-   * Base jsonFactory implementation used when it is not passed in.
-   */
-  static final JsonFactory jsonFactory = new JsonFactory();
-  private final JsonGenerator jsonGenerator;
-
-  private EJsonWriter(JsonGenerator jsonGenerator) {
-    this.jsonGenerator = jsonGenerator;
-  }
-
-  static String write(Object object) throws IOException {
-    StringWriter writer = new StringWriter(200);
-    write(object, writer).close();
-    return writer.toString();
-  }
-
-  static JsonGenerator write(Object object, Writer writer) throws IOException {
-    JsonGenerator generator = jsonFactory.createGenerator(writer);
-    write(object, generator);
-    generator.flush();
-    return generator;
-  }
-
-  static void write(Object object, JsonGenerator jsonGenerator) {
-    new EJsonWriter(jsonGenerator).writeJson(object);
-  }
-
-  static void writeCollection(Collection<Object> collection, JsonGenerator jsonGenerator) throws IOException {
-    new EJsonWriter(jsonGenerator).writeCollection(null, collection);
-  }
-
-  private void writeJson(Object object) {
-    writeJson(null, object);
-  }
-
-  @SuppressWarnings("unchecked")
-  private void writeJson(String name, Object object) {
-    try {
-      if (object == null) {
-        writeNull(name);
-
-      } else if (object instanceof Number) {
-        writeNumber(name, (Number) object);
-
-      } else if (object instanceof String) {
-        writeString(name, (String) object);
-
-      } else if (object instanceof Map) {
-        writeMap(name, (Map<Object, Object>) object);
-
-      } else if (object instanceof Collection) {
-        writeCollection(name, (Collection<Object>) object);
-
-      } else if (object instanceof Boolean) {
-        writeBoolean(name, (Boolean) object);
-
-      } else if (object instanceof Date) {
-        writeDate(name, (Date) object);
-
-      } else if (object instanceof Map.Entry<?, ?>) {
-        Map.Entry<?, ?> entry = (Map.Entry<?, ?>) object;
-        writeJson(entry.getKey().toString(), entry.getValue());
-
-      } else {
-        writeString(name, object.toString());
-      }
-
-    } catch (IOException e) {
-      throw new RuntimeException(e);
-    }
-  }
-
-  private void writeBoolean(String name, Boolean object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeBoolean(object);
-    } else {
-      jsonGenerator.writeBooleanField(name, object);
-    }
-  }
-
-  private void writeDate(String name, Date object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber(object.getTime());
-    } else {
-      jsonGenerator.writeNumberField(name, object.getTime());
-    }
-  }
-
-  private void writeNumber(String name, Number object) throws IOException {
-
-    if (object instanceof Long) {
-      writeLong(name, object);
-
-    } else if (object instanceof Integer) {
-      writeInteger(name, object);
-
-    } else if (object instanceof Double) {
-      writeDouble(name, object);
-
-    } else if (object instanceof BigDecimal) {
-      writeBigDecimal(name, object);
-
-    } else if (object instanceof BigInteger) {
-      writeBigInteger(name, object);
-
-    } else {
-      writeGeneralNumber(name, object);
-    }
-  }
-
-  private void writeGeneralNumber(String name, Number object) throws IOException {
-    writeBigDecimal(name, new BigDecimal(object.toString()));
-  }
-
-  private void writeBigDecimal(String name, Number object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber((BigDecimal) object);
-    } else {
-      jsonGenerator.writeNumberField(name, (BigDecimal) object);
-    }
-  }
-
-  private void writeBigInteger(String name, Number object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber((BigInteger) object);
-    } else {
-      jsonGenerator.writeNumberField(name, object.longValue());
-    }
-  }
-
-  private void writeDouble(String name, Number object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber((Double) object);
-    } else {
-      jsonGenerator.writeNumberField(name, (Double) object);
-    }
-  }
-
-  private void writeLong(String name, Number object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber((Long) object);
-    } else {
-      jsonGenerator.writeNumberField(name, (Long) object);
-    }
-  }
-
-  private void writeInteger(String name, Number object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNumber((Integer) object);
-    } else {
-      jsonGenerator.writeNumberField(name, (Integer) object);
-    }
-  }
-
-  private void writeNull(String name) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeNull();
-    } else {
-      jsonGenerator.writeNullField(name);
-    }
-  }
-
-  private void writeString(String name, String object) throws IOException {
-    if (name == null) {
-      jsonGenerator.writeString(object);
-    } else {
-      jsonGenerator.writeStringField(name, object);
-    }
-  }
-
-  private void writeCollection(String name, Collection<Object> collection) throws IOException {
-    if (name != null) {
-      jsonGenerator.writeFieldName(name);
-    }
-    jsonGenerator.writeStartArray();
-    for (Object object : collection) {
-      writeJson(null, object);
-    }
-    jsonGenerator.writeEndArray();
-  }
-
-  private void writeMap(String name, Map<Object, Object> map) throws IOException {
-
-    if (name != null) {
-      jsonGenerator.writeFieldName(name);
-    }
-    jsonGenerator.writeStartObject();
-    Set<Entry<Object, Object>> entrySet = map.entrySet();
-    for (Entry<Object, Object> entry : entrySet) {
-      writeJson(entry.getKey().toString(), entry.getValue());
-    }
-    jsonGenerator.writeEndObject();
-  }
-}
@@ -0,0 +1,181 @@
+package io.ebeaninternal.json;
+
+import io.avaje.json.JsonAdapter;
+import io.avaje.json.JsonReader;
+import io.avaje.json.JsonReader.Token;
+import io.avaje.json.JsonWriter;
+import io.avaje.json.stream.JsonStream;
+import io.ebean.ModifyAwareType;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Ebean specific {@link JsonAdapter} that materializes JSON into plain Java
+ * Map/List/scalar values - optionally wrapped in modify-aware collections so
+ * that mutations after load are tracked as dirty.
+ * <p>
+ * This consolidates the prior EJsonReader/EJsonWriter behavior into a single
+ * adapter that plugs into avaje {@code JsonMapper}.
+ */
+final class EbeanJsonAdapter implements JsonAdapter<Object> {
+
+  static final EbeanJsonAdapter PLAIN = new EbeanJsonAdapter(false);
+  static final EbeanJsonAdapter MODIFY_AWARE = new EbeanJsonAdapter(true);
+
+  private static final JsonStream JSON_STREAM = JsonStream.builder().build();
+
+  private final boolean modifyAware;
+
+  private EbeanJsonAdapter(boolean modifyAware) {
+    this.modifyAware = modifyAware;
+  }
+
+  @Override
+  public Object fromJson(JsonReader reader) {
+    return read(reader, null, modifyAware);
+  }
+
+  @Override
+  public void toJson(JsonWriter writer, Object value) {
+    write(writer, value);
+  }
+
+  /**
+   * Read a value honoring an explicitly supplied current token (or current token when null).
+   */
+  static Object read(JsonReader parser, Token token, boolean modifyAware) {
+    ModifyAwareType owner = modifyAware ? new ModifyAwareFlag() : null;
+    Token effectiveToken = token == null ? parser.currentToken() : token;
+    Object value;
+    if (effectiveToken == null) {
+      value = parseRawJson(parser.readRaw(), owner);
+    } else {
+      value = parseValue(parser, effectiveToken, owner);
+    }
+    if (owner != null) {
+      owner.setMarkedDirty(false);
+    }
+    return value;
+  }
+
+  private static Object parseValue(JsonReader parser, Token token, ModifyAwareType owner) {
+    if (token == null) {
+      token = parser.currentToken();
+      if (token == null) {
+        if (parser.isNullValue()) {
+          return null;
+        }
+        return parseRawJson(parser.readRaw(), owner);
+      }
+    }
+    switch (token) {
+      case BEGIN_OBJECT:
+        return parseObjectValue(parser, owner);
+      case BEGIN_ARRAY:
+        return parseArrayValue(parser, owner);
+      case NUMBER:
+        BigDecimal value = parser.readDecimal();
+        return value.scale() <= 0 ? value.longValue() : value;
+      case STRING:
+        return parser.readString();
+      case BOOLEAN:
+        return parser.readBoolean();
+      case NULL:
+        parser.isNullValue();
+        return null;
+      default:
+        return parseRawJson(parser.readRaw(), owner);
+    }
+  }
+
+  private static Object parseRawJson(String json, ModifyAwareType owner) {
+    if (json == null) {
+      return null;
+    }
+    String content = json.trim();
+    if (content.isEmpty()) {
+      return null;
+    }
+    try (JsonReader parser = JSON_STREAM.reader(content)) {
+      return parseValue(parser, parser.currentToken(), owner);
+    }
+  }
+
+  private static Map<String, Object> parseObjectValue(JsonReader parser, ModifyAwareType owner) {
+    Map<String, Object> map = owner == null
+      ? new LinkedHashMap<>()
+      : new ModifyAwareMap<>(owner, new LinkedHashMap<>());
+
+    parser.beginObject();
+    while (parser.hasNextField()) {
+      String fieldName = parser.nextField();
+      map.put(fieldName, parseValue(parser, parser.currentToken(), owner));
+    }
+    parser.endObject();
+    return map;
+  }
+
+  private static List<Object> parseArrayValue(JsonReader parser, ModifyAwareType owner) {
+    List<Object> list = owner == null
+      ? new ArrayList<>()
+      : new ModifyAwareList<>(owner, new ArrayList<>());
+
+    parser.beginArray();
+    while (parser.hasNextElement()) {
+      list.add(parseValue(parser, parser.currentToken(), owner));
+    }
+    parser.endArray();
+    return list;
+  }
+
+  /**
+   * Write the value to an existing JsonWriter (used for the raw stream paths).
+   */
+  static void write(JsonWriter jsonWriter, Object object) {
+    if (object == null) {
+      jsonWriter.nullValue();
+    } else if (object instanceof String) {
+      jsonWriter.value((String) object);
+    } else if (object instanceof Integer) {
+      jsonWriter.value((Integer) object);
+    } else if (object instanceof Long) {
+      jsonWriter.value((Long) object);
+    } else if (object instanceof Double) {
+      jsonWriter.value((Double) object);
+    } else if (object instanceof Float) {
+      jsonWriter.value((Float) object);
+    } else if (object instanceof BigDecimal) {
+      jsonWriter.value((BigDecimal) object);
+    } else if (object instanceof Boolean) {
+      jsonWriter.value((Boolean) object);
+    } else if (object instanceof Map<?, ?>) {
+      writeMap(jsonWriter, (Map<?, ?>) object);
+    } else if (object instanceof Collection<?>) {
+      writeCollection(jsonWriter, (Collection<?>) object);
+    } else {
+      jsonWriter.value(object.toString());
+    }
+  }
+
+  private static void writeMap(JsonWriter jsonWriter, Map<?, ?> map) {
+    jsonWriter.beginObject();
+    for (Map.Entry<?, ?> entry : map.entrySet()) {
+      jsonWriter.name((String) entry.getKey());
+      write(jsonWriter, entry.getValue());
+    }
+    jsonWriter.endObject();
+  }
+
+  static void writeCollection(JsonWriter jsonWriter, Collection<?> collection) {
+    jsonWriter.beginArray();
+    for (Object element : collection) {
+      write(jsonWriter, element);
+    }
+    jsonWriter.endArray();
+  }
+}
@@ -1,8 +1,7 @@
 module io.ebean.core.json {

  requires io.ebean.api;
-
-  requires transitive com.fasterxml.jackson.core;
+  requires transitive io.avaje.json;
  exports io.ebeaninternal.json to io.ebean.test, io.ebean.core;

  provides io.ebean.service.BootstrapService with io.ebeaninternal.json.DJsonService;
@@ -4,7 +4,7 @@
  <parent>
    <artifactId>ebean-parent</artifactId>
    <groupId>io.ebean</groupId>
-    <version>16.6.0</version>
+    <version>18.2.0</version>
  </parent>

  <artifactId>ebean-core-type</artifactId>
@@ -16,21 +16,20 @@
    <dependency>
      <groupId>io.ebean</groupId>
      <artifactId>ebean-api</artifactId>
-      <version>16.6.0</version>
+      <version>18.2.0</version>
    </dependency>

    <dependency>
-      <groupId>com.fasterxml.jackson.core</groupId>
-      <artifactId>jackson-core</artifactId>
-      <version>${jackson.version}</version>
-      <optional>true</optional>
+      <groupId>io.avaje</groupId>
+      <artifactId>avaje-json-core</artifactId>
+      <version>${avaje-json-core.version}</version>
    </dependency>

    <!-- Provided scope for Postgres JSON/JSONB support -->
    <dependency>
      <groupId>org.postgresql</groupId>
      <artifactId>postgresql</artifactId>
-      <version>42.7.2</version>
+      <version>42.7.11</version>
      <optional>true</optional>
    </dependency>

--- a/Show More
+++ b/Show More