java.lang.NoClassDefFoundError: org/netbeans/lib/profiler/results/cpu/StackTraceSnapshotBuilder
        at org.netbeans.modules.profiler.actions.SelfSamplerAction$Controller.getBuilder(SelfSamplerAction.java:201)
        at org.netbeans.modules.profiler.actions.SelfSamplerAction$Controller.run(SelfSamplerAction.java:223)
        at org.netbeans.core.TimableEventQueue.run(TimableEventQueue.java:179)
        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$SlowItem: task failed due to: java.lang.NoClassDefFoundError: org/netbeans/lib/profiler/results/cpu/StackTraceSnapshotBuilder
        at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:655)
        at org.netbeans.core.TimableEventQueue.tick(TimableEventQueue.java:168)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:116)
        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)