java.lang.InternalError: Should never happen
   at org.netbeans.lib.profiler.common.Profiler.getDefault(Profiler.java:125)
   at org.netbeans.modules.profiler.NetBeansProfiler.getDefaultNB(NetBeansProfiler.java:654)
   at org.netbeans.modules.profiler.NetBeansProfiler.isInitialized(NetBeansProfiler.java:660)
   at org.netbeans.modules.profiler.ProfilerModule.closing(ProfilerModule.java:83)
   at org.netbeans.core.startup.NbInstaller.closing(NbInstaller.java:667)
   at org.netbeans.ModuleManager.shutDown(ModuleManager.java:1740)
   at org.netbeans.core.startup.ModuleSystem.shutDown(ModuleSystem.java:316)
   at org.netbeans.core.NbLifecycleManager.doExit(NbLifecycleManager.java:167)
   at org.netbeans.core.NbLifecycleManager.access$000(NbLifecycleManager.java:75)
   at org.netbeans.core.NbLifecycleManager$ExitActions.run(NbLifecycleManager.java:123)
   at org.openide.util.Mutex.doEvent(Mutex.java:1341)
   at org.openide.util.Mutex.readAccess(Mutex.java:348)
   at org.netbeans.core.NbLifecycleManager.exit(NbLifecycleManager.java:111)
   at org.netbeans.core.windows.view.ui.MainWindow$5.windowClosing(MainWindow.java:432)
   at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
   at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
   at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:332)
   at java.awt.Window.processWindowEvent(Window.java:1865)
   at javax.swing.JFrame.processWindowEvent(JFrame.java:274)
   at java.awt.Window.processEvent(Window.java:1823)
   at java.awt.Component.dispatchEventImpl(Component.java:4651)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4481)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:643)
   at java.awt.EventQueue.access$000(EventQueue.java:84)
   at java.awt.EventQueue$1.run(EventQueue.java:602)
   at java.awt.EventQueue$1.run(EventQueue.java:600)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
   at java.awt.EventQueue$2.run(EventQueue.java:616)
   at java.awt.EventQueue$2.run(EventQueue.java:614)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:613)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148)
   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)