java.lang.AssertionError: Lookup.lookup(NotificationDisplayer.class) has to return the same instance NotificationDisplayer. at org.openide.awt.NotificationDisplayer.getDefault(NotificationDisplayer.java:95) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.notifyRestartNeeded(InstallStep.java:632) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.notifyInstallRestartNeeded(InstallStep.java:610) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.presentInstallNeedsRestart(InstallStep.java:596) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.doDownloadAndVerificationAndInstall(InstallStep.java:201) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep.access$200(InstallStep.java:101) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$2.run(InstallStep.java:186) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1411) at org.openide.util.RequestProcessor$Processor.doEvaluate(RequestProcessor.java:2037) at org.openide.util.RequestProcessor$Task.waitFinished(RequestProcessor.java:1645) at org.netbeans.modules.autoupdate.ui.wizards.InstallStep$1.propertyChange(InstallStep.java:169) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at java.awt.Component.firePropertyChange(Component.java:8154) at org.netbeans.modules.autoupdate.ui.wizards.OperationPanel.access$000(OperationPanel.java:67) at org.netbeans.modules.autoupdate.ui.wizards.OperationPanel$1.run(OperationPanel.java:88) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1411) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1991) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.AssertionError: Lookup.lookup(NotificationDisplayer.class) has to return the same instance NotificationDisplayer. at org.openide.util.RequestProcessor.post(RequestProcessor.java:439) at org.netbeans.modules.autoupdate.ui.wizards.OperationPanel.addNotify(OperationPanel.java:85) at java.awt.Container.addNotify(Container.java:2578) at javax.swing.JComponent.addNotify(JComponent.java:4685) at java.awt.Container.addNotify(Container.java:2578) at javax.swing.JComponent.addNotify(JComponent.java:4685) at java.awt.Container.addNotify(Container.java:2578) at javax.swing.JComponent.addNotify(JComponent.java:4685) at java.awt.Container.addNotify(Container.java:2578) at javax.swing.JComponent.addNotify(JComponent.java:4685) at org.netbeans.modules.autoupdate.ui.wizards.PanelBodyContainer.addNotify(PanelBodyContainer.java:94) at java.awt.Container.addImpl(Container.java:1068) at java.awt.Container.add(Container.java:927) at org.netbeans.core.windows.services.NbPresenter.initializeMessage(NbPresenter.java:379) at org.netbeans.core.windows.services.NbPresenter.propertyChange(NbPresenter.java:1101) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276) at org.openide.NotifyDescriptor.firePropertyChange(NotifyDescriptor.java:768) at org.openide.NotifyDescriptor.setMessage(NotifyDescriptor.java:356) at org.openide.WizardDescriptor.updateStateOpen(WizardDescriptor.java:986) at org.openide.WizardDescriptor.updateState(WizardDescriptor.java:843) at org.openide.WizardDescriptor.goToNextStep(WizardDescriptor.java:1080) at org.openide.WizardDescriptor.access$1300(WizardDescriptor.java:139) at org.openide.WizardDescriptor$Listener$1.run(WizardDescriptor.java:2086) at org.openide.WizardDescriptor.lazyValidate(WizardDescriptor.java:1495) at org.openide.WizardDescriptor.access$1400(WizardDescriptor.java:139) at org.openide.WizardDescriptor$Listener.actionPerformed(WizardDescriptor.java:2105) at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:0) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:460) at $Proxy27.actionPerformed(.java:0) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6288) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6053) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4651) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4481) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4577) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4238) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) 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:153) 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$3.run(Dialog.java:1098) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:1096) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1038) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1072) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1060) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126) at org.openide.util.Mutex.doEventAccess(Mutex.java:1361) at org.openide.util.Mutex.readAccess(Mutex.java:271) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1045) at java.awt.Component.show(Component.java:1584) at java.awt.Component.setVisible(Component.java:1536) at java.awt.Window.setVisible(Window.java:842) at java.awt.Dialog.setVisible(Dialog.java:986) at org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizard.implInvokeWizard(InstallUnitWizard.java:97) at org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizard.invokeWizard(InstallUnitWizard.java:82) at org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizard.invokeWizard(InstallUnitWizard.java:77) at org.netbeans.modules.autoupdate.ui.wizards.InstallUnitWizard.invokeWizard(InstallUnitWizard.java:73) at org.netbeans.modules.autoupdate.ui.UnitTab$UpdateAction.performerImpl(UnitTab.java:1244) at org.netbeans.modules.autoupdate.ui.UnitTab$TabAction.actionPerformed(UnitTab.java:1066) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236) at java.awt.Component.processMouseEvent(Component.java:6288) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6053) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4651) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4481) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4577) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4238) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4168) at java.awt.Container.dispatchEventImpl(Container.java:2085) 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:153) 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)