#2782 - Support MariaDB jdbc driver update - Batched JDBC SQLException translation, SqlRow BLOB reading

- Batched JDBC SQLException translation - Need to dig into nested exception to get cause error state
- SqlRow BLOB reading - BLOB can come as LONGVARBINARY (TestRawSqlBuilder)
- Fix test for history using system time (TestHistoryInsert)
- Fix SqlQueryCancelTest
- Fix TestSqlUpdateExceptions

ebean-test/src/test/java/org/tests/history/TestHistoryInsert.java

@@ -15,19 +15,23 @@ import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-public class TestHistoryInsert extends BaseTestCase {
+class TestHistoryInsert extends BaseTestCase {
 
   private final Logger logger = LoggerFactory.getLogger(TestHistoryInsert.class);
 
+  private Timestamp currentDbSystemTime() {
+    return DB.sqlQuery("select current_timestamp(6)").mapToScalar(Timestamp.class).findOne();
+  }
+
   /**
    * Looks like we MUST use useLegacyDatetimeCode=false ... in order for
    * the correct server timezone to be honored by the MariaDB JDBC driver.
    */
   @Test
   @ForPlatform({Platform.MARIADB})
-  public void mariadb_simple_history() {
+  void mariadb_simple_history() {
 
-    Timestamp t0 = new Timestamp(System.currentTimeMillis());
+    Timestamp t0 = currentDbSystemTime();
     littleSleep(50);
 
     User user = new User();
@@ -35,19 +39,19 @@ public class TestHistoryInsert extends BaseTestCase {
     user.setEmail("one@email.com");
     user.setPasswordHash("someHash");
     DB.save(user);
-    Timestamp t1 = new Timestamp(System.currentTimeMillis());
+    Timestamp t1 = currentDbSystemTime();
 
     littleSleep(100);
     user.setName("NotJim");
     user.save();
-    Timestamp t2 = new Timestamp(System.currentTimeMillis());
+    Timestamp t2 = currentDbSystemTime();
 
     littleSleep(100);
     user.setName("NotJimV2");
     user.setEmail("two@email.com");
     user.save();
     littleSleep(50);
-    Timestamp t3 = new Timestamp(System.currentTimeMillis());
+    Timestamp t3 = currentDbSystemTime();
 
     List<Version<User>> versions = DB.find(User.class).setId(user.getId()).findVersionsBetween(t0, t3);
     assertThat(versions).hasSize(3);

ebean-test/src/test/java/org/tests/query/cancel/SqlQueryCancelTest.java

@@ -59,7 +59,7 @@ import static org.junit.jupiter.api.Assertions.assertThrows;
  *
  * @author Roland Praml, FOCONIS AG
  */
-public class SqlQueryCancelTest extends BaseTestCase {
+class SqlQueryCancelTest extends BaseTestCase {
 
   private final int timing = 20;
 
@@ -191,17 +191,13 @@ public class SqlQueryCancelTest extends BaseTestCase {
   }
 
   @Test
-  public void cancelOrmDtoDuringIterate() {
+  void cancelOrmDtoDuringIterate() {
     DtoQuery<EBasicDto> query = DB.find(EBasic.class).select("id,status").asDto(EBasicDto.class);
 
     QueryIterator<EBasicDto> iter = query.findIterate();
     assertThat(iter.hasNext()).isTrue();
     query.cancel();
-    if (isMariaDB()) {
-      assertThrows(PersistenceException.class, iter::next);
-    } else {
-      assertThat(iter.next()).isNotNull();
-    }
+    assertThat(iter.next()).isNotNull();
 
     // We might have 100 entities in a buffer. So we must iterate through all.
     assertThatThrownBy(() -> {

ebean-test/src/test/java/org/tests/update/TestSqlUpdateExceptions.java

@@ -9,7 +9,7 @@ import java.util.UUID;
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
-public class TestSqlUpdateExceptions extends BaseTestCase {
+class TestSqlUpdateExceptions extends BaseTestCase {
 
   private String sql = "insert into uuone (id, name, version) values (?,?,?)";
 
@@ -63,7 +63,7 @@ public class TestSqlUpdateExceptions extends BaseTestCase {
   }
 
   @Test
-  public void duplicateKey_inBatch() {
+  void duplicateKey_inBatch() {
     UUID id = UUID.randomUUID();
     assertThrows(DuplicateKeyException.class, () -> {
       try (Transaction transaction = DB.beginTransaction()) {
@@ -85,7 +85,7 @@ public class TestSqlUpdateExceptions extends BaseTestCase {
   }
 
   @Test
-  public void duplicateKey_executeBatch() {
+  void duplicateKey_executeBatch() {
     UUID id = UUID.randomUUID();
     assertThrows(DuplicateKeyException.class, () -> {
       try (Transaction transaction = DB.beginTransaction()) {