java.lang.AssertionError: cannot switch to silent mode when not running
   at org.netbeans.modules.progress.spi.InternalHandle.toSilent(InternalHandle.java:160)
   at org.netbeans.api.progress.ProgressHandle.suspend(ProgressHandle.java:119)
   at org.netbeans.core.ui.warmup.MenuWarmUpTask$NbWindowsAdapter$1HandleBridge.run(MenuWarmUpTask.java:259)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
   at java.awt.Dialog$1.run(Dialog.java:1046)
   at java.awt.Dialog$3.run(Dialog.java:1098)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.Dialog.show(Dialog.java:1096)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1006)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1040)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1028)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:121)
   at org.openide.util.Mutex.doEventAccess(Mutex.java:1361)
   at org.openide.util.Mutex.readAccess(Mutex.java:271)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1013)
   at java.awt.Component.show(Component.java:1563)
   at java.awt.Component.setVisible(Component.java:1515)
   at java.awt.Window.setVisible(Window.java:842)
   at java.awt.Dialog.setVisible(Dialog.java:986)
   at org.netbeans.core.execution.Install.showPendingTasks(Install.java:282)
   at org.netbeans.core.execution.Install.closing(Install.java:164)
   at org.netbeans.core.startup.NbInstaller.closing(NbInstaller.java:667)
   at org.netbeans.ModuleManager.shutDown(ModuleManager.java:1607)
   at org.netbeans.core.startup.ModuleSystem.shutDown(ModuleSystem.java:308)
   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$4.windowClosing(MainWindow.java:358)
   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.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:4630)
   at java.awt.Container.dispatchEventImpl(Container.java:2099)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4460)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:137)
   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)