OptimisticLockException while using L2 cache fix (#2248)

Under specific conditions is org.eclipse.persistence.exceptions.OptimisticLockException incorrectly thrown.
Environment conditions are:

    JPA L2 cache enabled
    Weaving is applied to used entities
    @Version annotation is used

Test org.eclipse.persistence.testing.tests.advanced2.weave.WeaveVersionTest#testWeavedEntitiesWithVersionL2Cache describe sequence of steps which leads into org.eclipse.persistence.exceptions.OptimisticLockException if fix is not applied.

Purpose of fix in org.eclipse.persistence.internal.sessions.UnitOfWorkImpl#cloneAndRegisterObject(java.lang.Object, org.eclipse.persistence.internal.identitymaps.CacheKey, org.eclipse.persistence.internal.identitymaps.CacheKey, org.eclipse.persistence.descriptors.ClassDescriptor) is update current working object with non-invalidated version from UnitOfWork scope if original is still invalid.


Signed-off-by: Radek Felcman <[email protected]>

foundation/org.eclipse.persistence.core/src/main/java/org/eclipse/persistence/internal/sessions/UnitOfWorkImpl.java

@@ -1074,6 +1074,9 @@ public Object cloneAndRegisterObject(Object original, CacheKey parentCacheKey, C
             }
         }
         try {
+            if (isConsideredInvalid(original, parentCacheKey, descriptor) && unitOfWorkCacheKey.getObject() != null) {
+                original = unitOfWorkCacheKey.getObject();
+            }
             // bug:6167576   Must acquire the lock before cloning.
             workingClone = builder.instantiateWorkingCopyClone(original, this);
             // PERF: Cache the primary key if implements PersistenceEntity.

jpa/eclipselink.jpa.testapps/jpa.test.advanced2/src/main/java/org/eclipse/persistence/testing/models/jpa21/advanced/weave/IsolatedEntity.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+package org.eclipse.persistence.testing.models.jpa21.advanced.weave;
+
+import java.util.Objects;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import jakarta.persistence.Version;
+
+@Entity
+@Table(name="JPA21_ISOLATED_ENTITY")
+public class IsolatedEntity {
+
+    @Id
+    protected String id;
+
+    @Version
+    protected Integer version;
+
+    public IsolatedEntity() {
+        super();
+    }
+
+    public IsolatedEntity(String id) {
+        this.id = id;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        IsolatedEntity that = (IsolatedEntity) o;
+        return Objects.equals(id, that.id) && Objects.equals(version, that.version);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, version);
+    }
+}

jpa/eclipselink.jpa.testapps/jpa.test.advanced2/src/main/java/org/eclipse/persistence/testing/models/jpa21/advanced/weave/Location.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+package  org.eclipse.persistence.testing.models.jpa21.advanced.weave;
+
+import java.util.Objects;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.persistence.Version;
+
+@Entity
+@Table(name="JPA21_LOCATION")
+public class Location {
+
+    @Id
+    protected Long id;
+
+    protected String locationId;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    protected Node node;
+
+    @Version
+    protected Integer version;
+
+    public Location(long id, String locationId) {
+        this.id = id;
+        this.locationId = locationId;
+    }
+
+    protected Location() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getLocationId() {
+        return this.locationId;
+    }
+
+    public Node getNode() {
+        return node;
+    }
+
+    public void setNode(Node node) {
+        this.node = node;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Location location = (Location) o;
+        return Objects.equals(id, location.id) && Objects.equals(locationId, location.locationId) && Objects.equals(node, location.node) && Objects.equals(version, location.version);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, locationId, node, version);
+    }
+}

jpa/eclipselink.jpa.testapps/jpa.test.advanced2/src/main/java/org/eclipse/persistence/testing/models/jpa21/advanced/weave/Node.java

@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+package org.eclipse.persistence.testing.models.jpa21.advanced.weave;
+
+import java.util.Objects;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import jakarta.persistence.Version;
+
+@Entity
+@Table(name="JPA21_NODE")
+public class Node {
+
+    @Id
+    protected String id;
+
+    protected int availableBufferCapacity = 10;
+
+    @Version
+    protected Integer version;
+
+    public Node(String id) {
+        this.id = id;
+    }
+
+    protected Node() {
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public int getAvailableBufferCapacity() {
+        return availableBufferCapacity;
+    }
+
+    public void reserveBufferCapacity() {
+        availableBufferCapacity--;
+    }
+
+    public Integer getVersion() {
+        return version;
+    }
+
+/*
+    public void setVersion(Integer version) {
+        this.version = version;
+    }
+*/
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Node node = (Node) o;
+        return availableBufferCapacity == node.availableBufferCapacity && Objects.equals(id, node.id) && Objects.equals(version, node.version);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, availableBufferCapacity, version);
+    }
+}

jpa/eclipselink.jpa.testapps/jpa.test.advanced2/src/main/java/org/eclipse/persistence/testing/models/jpa21/advanced/weave/Order.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2024 Oracle and/or its affiliates. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-2.0,
+ * or the Eclipse Distribution License v. 1.0 which is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
+ */
+package org.eclipse.persistence.testing.models.jpa21.advanced.weave;
+
+import java.util.Objects;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.persistence.Version;
+
+@Entity
+@Table(name="JPA21_ORDER_1")
+public class Order {
+
+    @Id
+    protected Long id;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    protected Node node;
+
+    @Version
+    protected Integer version;
+
+    protected Order() {
+    }
+
+    public Order(long id) {
+
+        this.id = id;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public Node getNode() {
+        return node;
+    }
+
+    public void setNode(Node destinationNode) {
+        this.node = destinationNode;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Order order = (Order) o;
+        return Objects.equals(id, order.id) && Objects.equals(node, order.node) && Objects.equals(version, order.version);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, node, version);
+    }
+}

jpa/eclipselink.jpa.testapps/jpa.test.advanced2/src/main/resources/META-INF/persistence.xml

@@ -210,4 +210,17 @@
         </properties>
     </persistence-unit>
 
+    <persistence-unit name="pu-with-dynamic-weaving" transaction-type="RESOURCE_LOCAL">
+        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
+        <class>org.eclipse.persistence.testing.models.jpa21.advanced.weave.IsolatedEntity</class>
+        <class>org.eclipse.persistence.testing.models.jpa21.advanced.weave.Location</class>
+        <class>org.eclipse.persistence.testing.models.jpa21.advanced.weave.Node</class>
+        <class>org.eclipse.persistence.testing.models.jpa21.advanced.weave.Order</class>
+        <exclude-unlisted-classes>true</exclude-unlisted-classes>
+        <shared-cache-mode>DISABLE_SELECTIVE</shared-cache-mode>
+        <properties>
+            <property name="eclipselink.weaving" value="true"/>
+            <property name="jakarta.persistence.schema-generation.database.action" value="drop-and-create"/>
+        </properties>
+    </persistence-unit>
 </persistence>