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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)