Merge pull request #32567 from pardhiv-krishna/32246_Recreate

Recreate OpenLiberty Issue #32246

Author: pardhiv-krishna

dev/com.ibm.ws.jpa.tests.jpa_32_fat/test-applications/jakartadata/src/io/openliberty/jpa/data/tests/models/Student.java

@@ -0,0 +1,37 @@
+/*******************************************************************************
+ * Copyright (c) 2025 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License 2.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package io.openliberty.jpa.data.tests.models;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+
+/**
+ * JPA entity representing a student.  
+ * Contains a roll number, name, and an array of marks.
+ */
+@Entity
+public class Student {
+
+    @Id
+    public long rollNo;
+
+    public String name;
+
+    public int[] marks;
+
+    public Student() {
+    }
+
+    public Student(long rollNo, String name, int[] marks) {
+        this.rollNo = rollNo;
+        this.name = name;
+        this.marks = marks;
+    }
+}

dev/com.ibm.ws.jpa.tests.jpa_32_fat/test-applications/jakartadata/src/io/openliberty/jpa/data/tests/web/JakartaDataRecreateServlet.java

@@ -78,6 +78,7 @@
 import io.openliberty.jpa.data.tests.models.ShippingAddress;
 import io.openliberty.jpa.data.tests.models.Store;
 import io.openliberty.jpa.data.tests.models.StreetAddress;
+import io.openliberty.jpa.data.tests.models.Student;
 import io.openliberty.jpa.data.tests.models.TaxPayer;
 import io.openliberty.jpa.data.tests.models.Triangle;
 import io.openliberty.jpa.data.tests.models.Vehicle;
@@ -2431,6 +2432,38 @@ public void testOLGH32204() throws Exception {
         assertEquals(40000f, result.get(0).income, 0.01);
         assertEquals(60000f, result.get(1).income, 0.01);
     }
+    
+    @Test
+    // Reference issue: https://github.com/OpenLiberty/open-liberty/issues/32246
+    public void testOLGH32246() throws Exception {
+        deleteAllEntities(Student.class);
+
+        Student s1 = new Student(1L, "Achu", new int[] { 90, 85, 88 });
+        Student s2 = new Student(2L, "Appu", new int[] { 75, 80, 70 });
+        Student s3 = new Student(3L, "Ammu", new int[] { 70, 90, 75 });
+
+        tx.begin();
+        em.persist(s1);
+        em.persist(s2);
+        em.persist(s3);
+        tx.commit();
+
+        List<?> resultStudents;
+        try {
+            resultStudents = em.createQuery("SELECT s.marks FROM Student s WHERE s.rollNo = ?1", Student.class) // Forcing ConversionException by giving wrong entity class
+                            .setParameter(1, 3L)
+                            .getResultList();
+        } catch (Exception e) {
+            throw e;
+        }
+
+        assertEquals(
+                     List.of(Arrays.toString(new int[] { 70, 90, 75 })),
+                     resultStudents.stream()
+                                     .map(o -> Arrays.toString((int[]) o))
+                                     .collect(Collectors.toList()));
+
+    }
 
     /**
      * Utility method to drop all entities from table.