com.sun.jdi.IncompatibleThreadStateException
   at com.sun.tools.jdi.ClassTypeImpl.invokeMethod(ClassTypeImpl.java:231)
   at org.netbeans.modules.debugger.jpda.jdi.ClassTypeWrapper.invokeMethod(ClassTypeWrapper.java:280)
Caused: org.netbeans.modules.debugger.jpda.visual.RetrievalException
   at org.netbeans.modules.debugger.jpda.visual.RemoteAWTScreenshot$1.run(RemoteAWTScreenshot.java:445)
   at org.netbeans.modules.debugger.jpda.visual.RemoteServices.runOnStoppedThread(RemoteServices.java:470)
   at org.netbeans.modules.debugger.jpda.visual.RemoteAWTScreenshot.take(RemoteAWTScreenshot.java:231)
   at org.netbeans.modules.debugger.jpda.visual.RemoteAWTScreenshot.takeCurrent(RemoteAWTScreenshot.java:175)
   at org.netbeans.modules.debugger.jpda.visual.RemoteAWTScreenshot.takeCurrent(RemoteAWTScreenshot.java:163)
   at org.netbeans.modules.debugger.jpda.visual.actions.TakeScreenshotActionProvider.doAction(TakeScreenshotActionProvider.java:110)
   at org.netbeans.spi.debugger.ActionsProvider$1.run(ActionsProvider.java:130)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)