java.lang.InternalError: Should never happen
        at org.netbeans.lib.profiler.common.Profiler.getDefault(Profiler.java:131)
        at org.netbeans.modules.profiler.NetBeansProfiler.getDefaultNB(NetBeansProfiler.java:621)
        at org.netbeans.modules.profiler.actions.SelfSamplerAction.isRunMode(SelfSamplerAction.java:187)
        at org.netbeans.modules.profiler.actions.SelfSamplerAction.getValue(SelfSamplerAction.java:157)
        at org.netbeans.core.TimableEventQueue.createSelfSampler(TimableEventQueue.java:202)
        at org.netbeans.core.TimableEventQueue.run(TimableEventQueue.java:185)
        at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:602)
        at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1084)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.InternalError: Should never happen
        at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:655)
        at org.netbeans.core.TimableEventQueue.tick(TimableEventQueue.java:176)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:124)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)