java.lang.NullPointerException at org.netbeans.modules.autoupdate.ui.SettingsTab$Listener.prepareContent(SettingsTab.java:468) at org.netbeans.modules.autoupdate.ui.SettingsTab$Listener.modelOrSelectionChanged(SettingsTab.java:486) at org.netbeans.modules.autoupdate.ui.SettingsTab$Listener.valueChanged(SettingsTab.java:434) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:184) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:164) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:211) at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:405) at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:415) at javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:459) at org.netbeans.modules.autoupdate.ui.SettingsTab$1.run(SettingsTab.java:209) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1454) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2036) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException at org.openide.util.RequestProcessor$Task.schedule(RequestProcessor.java:1495) at org.netbeans.modules.autoupdate.ui.Utilities.startAsWorkerThread(Utilities.java:716) at org.netbeans.modules.autoupdate.ui.Utilities.startAsWorkerThread(Utilities.java:710) at org.netbeans.modules.autoupdate.ui.SettingsTab.addNotify(SettingsTab.java:204) at java.awt.Container.addNotify(Container.java:2769) at javax.swing.JComponent.addNotify(JComponent.java:4743) at java.awt.Container.addNotify(Container.java:2769) at javax.swing.JComponent.addNotify(JComponent.java:4743) at org.netbeans.modules.autoupdate.ui.PluginManagerUI.addNotify(PluginManagerUI.java:185) at java.awt.Container.addNotify(Container.java:2769) at javax.swing.JComponent.addNotify(JComponent.java:4743) at java.awt.Container.addNotify(Container.java:2769) at javax.swing.JComponent.addNotify(JComponent.java:4743) at java.awt.Container.addNotify(Container.java:2769) at javax.swing.JComponent.addNotify(JComponent.java:4743) at javax.swing.JRootPane.addNotify(JRootPane.java:756) at java.awt.Container.addNotify(Container.java:2769) at java.awt.Window.addNotify(Window.java:770) at java.awt.Dialog.addNotify(Dialog.java:755) at org.netbeans.core.windows.services.NbPresenter.addNotify(NbPresenter.java:464) at java.awt.Window.pack(Window.java:807) at org.netbeans.core.windows.services.NbPresenter.initialize(NbPresenter.java:270) at org.netbeans.core.windows.services.NbPresenter.(NbPresenter.java:200) at org.netbeans.core.windows.services.NbDialog.(NbDialog.java:67) at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:152) at org.netbeans.core.windows.services.DialogDisplayerImpl$1.run(DialogDisplayerImpl.java:116) at org.openide.util.Mutex.doEventAccess(Mutex.java:1363) at org.openide.util.Mutex.readAccess(Mutex.java:273) at org.netbeans.core.windows.services.DialogDisplayerImpl.createDialog(DialogDisplayerImpl.java:116) at org.netbeans.modules.autoupdate.ui.actions.PluginManagerAction.actionPerformed(PluginManagerAction.java:96) at org.openide.awt.AlwaysEnabledAction$1.run(AlwaysEnabledAction.java:198) at org.openide.util.actions.ActionInvoker$1.run(ActionInvoker.java:95) at org.openide.util.actions.ActionInvoker.doPerformAction(ActionInvoker.java:116) at org.openide.util.actions.ActionInvoker.invokeAction(ActionInvoker.java:99) at org.openide.awt.AlwaysEnabledAction.actionPerformed(AlwaysEnabledAction.java:201) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877) at java.awt.Component.processMouseEvent(Component.java:6505) at javax.swing.JComponent.processMouseEvent(JComponent.java:3321) at java.awt.Component.processEvent(Component.java:6270) at java.awt.Container.processEvent(Container.java:2229) at java.awt.Component.dispatchEventImpl(Component.java:4861) at java.awt.Container.dispatchEventImpl(Container.java:2287) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832) at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4492) at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422) at java.awt.Container.dispatchEventImpl(Container.java:2273) at java.awt.Window.dispatchEventImpl(Window.java:2719) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:682) at java.awt.EventQueue$3.run(EventQueue.java:680) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87) at java.awt.EventQueue$4.run(EventQueue.java:696) at java.awt.EventQueue$4.run(EventQueue.java:694) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:693) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:158) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139) at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)