java.lang.NullPointerException

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  • Unable to open "Tools/Preferences"
    via by 391057,
  • NullPointer Exception on Preference
    via by 396722,
  • JDeveloper Exception
    via by 400948,
    • java.lang.NullPointerException at oracle.ide.addin.config.AddinManagerOptions.copyToImpl(AddinManagerOptions.java:151) at oracle.ide.addin.config.AddinManagerOptions.copyTo(AddinManagerOptions.java:462) at oracle.ide.util.ModelUtil.deepCopy(ModelUtil.java:297) at oracle.ide.config.IdeSettings.copyToImpl(IdeSettings.java:137) at oracle.ide.config.IdeSettings.copyTo(IdeSettings.java:131) at oracle.ide.config.IdeSettings.showDialog(IdeSettings.java:313) at oracle.ide.config.IdeSettings.showDialog(IdeSettings.java:241) at oracle.ide.cmd.IdeSettingsCommand.doit(IdeSettingsCommand.java:35) at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:363) at oracle.ide.CommandProcessor.invoke(CommandProcessor.java:115) at oracle.ide.IdeAction$1.run(IdeAction.java:614) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178) at java.awt.EventQueue.dispatchEvent(EventQueue.java:454) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137) at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
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