FIX: Reuse of io.ebean.Update with collection parameters did not work correctly

ebean-test/src/test/java/org/tests/basic/TestUpdate.java

@@ -0,0 +1,71 @@
+package org.tests.basic;
+
+import io.ebean.BaseTestCase;
+import io.ebean.DB;
+import io.ebean.Update;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.tests.model.basic.Customer;
+
+import java.util.Arrays;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Testcase identified a bug when collections are used as bind parameters
+ *
+ * @author Roland Praml, FOCONIS AG
+ */
+public class TestUpdate extends BaseTestCase {
+
+  @BeforeEach
+  public void createCustomers() {
+    for (int i = 1; i <= 3; i++) {
+      Customer cust = new Customer();
+      cust.setName("testUpdate" + i);
+      DB.save(cust);
+    }
+  }
+
+  @AfterEach
+  public void deleteCustomers() {
+    DB.createUpdate(Customer.class, "delete from customer where name like 'testUpdate%'").execute();
+  }
+
+  @Test
+  public void testNormal() {
+
+    for (int i = 1; i <= 3; i++) {
+      Update<Customer> update = DB.createUpdate(Customer.class,
+        "update customer set smallnote = :smallnote where name in (:name)");
+      update.setParameter("name", Arrays.asList("testUpdate" + i)).setParameter("smallnote", "Note #" + i).execute();
+    }
+    Customer cust = DB.find(Customer.class).where().eq("name", "testUpdate3").findOne();
+    assertThat(cust.getSmallnote()).isEqualTo("Note #3");
+  }
+
+  @Test
+  public void testReuse() {
+
+    Update<Customer> update = DB.createUpdate(Customer.class,
+      "update customer set smallnote = :smallnote where name in (:name)");
+    for (int i = 1; i <= 3; i++) {
+      update.setParameter("name", Arrays.asList("testUpdate" + i)).setParameter("smallnote", "Note #" + i).execute();
+    }
+    Customer cust = DB.find(Customer.class).where().eq("name", "testUpdate3").findOne();
+    assertThat(cust.getSmallnote()).isEqualTo("Note #3");
+  }
+
+  @Test
+  public void testReuseNoArray() {
+
+    Update<Customer> update = DB.createUpdate(Customer.class,
+      "update customer set smallnote = :smallnote where name = :name");
+    for (int i = 1; i <= 3; i++) {
+      update.setParameter("name", "testUpdate" + i).setParameter("smallnote", "Note #" + i).execute();
+    }
+    Customer cust = DB.find(Customer.class).where().eq("name", "testUpdate3").findOne();
+    assertThat(cust.getSmallnote()).isEqualTo("Note #3");
+  }
+}