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This bug was originally marked as duplicate of bug 118184, that is already resolved. This bug is still valid, so this seems to be another bug, but it might be related. Build: NetBeans IDE Dev (Build 100429-0b3e6ee0f20c) VM: Java HotSpot(TM) 64-Bit Server VM, 14.3-b01, Java(TM) SE Runtime Environment, 1.6.0_17-b04 OS: Linux User Comments: alexey_vladykin: Created new C/C++ project Stacktrace: java.lang.NullPointerException at javax.swing.JComponent._paintImmediately(JComponent.java:5075) at javax.swing.JComponent.paintImmediately(JComponent.java:4870) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714) at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694) at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:125)
Created attachment 98281 [details] stacktrace
Created attachment 98495 [details] stacktrace
Created attachment 101823 [details] stacktrace
Evaluated in http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6524980 "The only way I can see this problem happening is if the submitter has a) overridden getGraphics to return null or is b) manipulating Swing from multiple threads." The issue 118184 fixed some, but there are still some remaining.
Created attachment 104242 [details] stacktrace
No new duplicate for a year. Closing worksforme now.