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oracle-adfjdeveloper

An unexpected severe error has occurred in Jdeveloper

My Jdeveloper is continuously prompting me with this error popup window. enter image description here

The error details is as follows:-

enter image description here

The details of the error message is as follows:-

Exception while updating action Block Selection
java.lang.NoClassDefFoundError: oracle/javatools/editor/EditorSelectionColumns
  o.i.ceditor.CodeEditorController.update(CodeEditorController.java:462)
  o.i.controller.IdeAction.updateAction(IdeAction.java:787)
  o.i.controller.IdeAction.updateAction(IdeAction.java:749)
  o.i.view.View.updateAction(View.java:390)
  o.i.view.View.updateToolbarActions(View.java:384)
  o.i.view.View.updateVisibleActions(View.java:214)
  com.oracle.jdeveloper.nbwindowsystem.NbMainWindow$UpdateVisibleActions.fireUpdate(NbMainWindow.java:1794)
  com.oracle.jdeveloper.nbwindowsystem.NbMainWindow$UpdateVisibleActions.actionPerformed(NbMainWindow.java:1779)
  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$3.run(EventQueue.java:703)
  j.security.AccessController.doPrivileged(Native Method)
  j.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
  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)

I cant figure it out what is the problem. It worked few times by cancelling the pop up. But I think it's better to find a solution for it.

Solution

  • This is a fairly regular screen in jDeveloper, I get it at least twice a day. I click save and exit (which does nothing) and continue working.