java.lang.NullPointerException
	at org.netbeans.modules.javacore.JMManager.getFileObject(JMManager.java:512)
	at org.netbeans.modules.javacore.JMManager.setClassPath(JMManager.java:313)
	at org.netbeans.modules.editor.java.JMIUtils.openElement(JMIUtils.java:554)
	at org.netbeans.modules.editor.java.NbJavaJMISyntaxSupport.openSource(NbJavaJMISyntaxSupport.java:501)
	at org.netbeans.modules.editor.java.JavaKit$JavaJMIGotoDeclarationAction.actionPerformed(JavaKit.java:344)
	at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:169)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1512)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2435)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2470)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2398)
	at java.awt.Component.processEvent(Component.java:4943)
	at java.awt.Container.processEvent(Container.java:1566)
	at java.awt.Component.dispatchEventImpl(Component.java:3639)
	at java.awt.Container.dispatchEventImpl(Container.java:1623)
	at java.awt.Component.dispatchEvent(Component.java:3480)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1708)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:593)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:765)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:698)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:559)
	at java.awt.Component.dispatchEventImpl(Component.java:3509)
	at java.awt.Container.dispatchEventImpl(Container.java:1623)
	at java.awt.Window.dispatchEventImpl(Window.java:1590)
	at java.awt.Component.dispatchEvent(Component.java:3480)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)