Hello everyone,
I downloaded the new JDeveloper version 12.2.1 and I'm having an annoying error.
Everytime I change tabs, or copy and paste variables or do any kind of actions inside the IDE, this raise up an exception.
I don“t know what it could be, so I'm hoping you can help me with this issue.

Uncaught exception
oracle.toplink.workbench.utility.AssertionFailedException: The listener cannot be null, aspectName=value
o.toplink.workbench.utility.Assert.fail(Assert.java:52)
o.toplink.workbench.utility.Assert.isNotNull(Assert.java:148)
o.toplink.workbench.utility.events.ChangeSupport.removeListener(ChangeSupport.java:155)
o.toplink.workbench.utility.events.ChangeSupport.removePropertyChangeListener(ChangeSupport.java:343)
o.toplink.workbench.addin.ui.annotation.inspector.editor.AbstractPropertyEditor.removePropertyChangeListener(AbstractPropertyEditor.java:527)
o.i.inspector.ValueApplierPropertyChangeListener.detach(ValueApplierPropertyChangeListener.java:64)
o.i.inspector.PropertyInfo.detachFromPropertyEditor(PropertyInfo.java:222)
o.i.inspector.PropertyInfo.update(PropertyInfo.java:138)
o.i.inspector.Properties.update(Properties.java:88)
o.i.inspector.PropertyInspector.updateProperties(PropertyInspector.java:594)
o.i.inspector.PropertyInspector.refresh(PropertyInspector.java:445)
o.i.inspector.PropertyInspector.updatePropertyModel(PropertyInspector.java:429)
o.i.inspector.PropertyInspector.updatePropertyEditors(PropertyInspector.java:407)
o.ii.inspector.InspectorWindowImpl.updatePropertyEditors(InspectorWindowImpl.java:1433)
o.ii.inspector.InspectorWindowImpl.refresh(InspectorWindowImpl.java:1271)
o.ii.inspector.InspectorWindowImpl$1.actionPerformed(InspectorWindowImpl.java:276)
jx.s.Timer.fireActionPerformed(Timer.java:313)
jx.s.Timer$DoPostEvent.run(Timer.java:245)
j.a.event.InvocationEvent.dispatch(InvocationEvent.java:311)
j.a.EventQueue.dispatchEventImpl(EventQueue.java:756)
j.a.EventQueue.access$500(EventQueue.java:97)
j.a.EventQueue$3.run(EventQueue.java:709)
j.a.EventQueue$3.run(EventQueue.java:703)
j.security.AccessController.doPrivileged(Native Method)
j.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
j.a.EventQueue.dispatchEvent(EventQueue.java:726)
o.javatools.internal.ui.EventQueueWrapper._dispatchEvent(EventQueueWrapper.java:169)
o.javatools.internal.ui.EventQueueWrapper.dispatchEvent(EventQueueWrapper.java:151)
j.a.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
j.a.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
j.a.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
j.a.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
j.a.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
j.a.EventDispatchThread.run(EventDispatchThread.java:82)