java.lang.NullPointerException
        at org.netbeans.modules.web.core.jsploader.BaseJspEditorSupport$BaseJspEditor.componentActivated(BaseJspEditorSupport.java:304)
        at org.netbeans.modules.web.debug.JspEditorSupport$JspEditor.componentActivated(JspEditorSupport.java:172)
        at org.openide.windows.WindowManager.activateComponent(WindowManager.java:218)
        at org.netbeans.core.windows.WindowManagerImpl.notifyRegistryTopComponentActivated(WindowManagerImpl.java:656)
        at org.netbeans.core.windows.Central.setActiveMode(Central.java:158)
        at org.netbeans.core.windows.WindowManagerImpl.setActiveMode(WindowManagerImpl.java:476)
        at org.netbeans.core.windows.PersistenceHandler.load(PersistenceHandler.java:168)
        at org.netbeans.core.windows.WindowSystemImpl.load(WindowSystemImpl.java:37)
        at org.netbeans.core.Main$6.run(Main.java:399)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
[catch] at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)