Thu Feb 08 14:57:54 CET 2001java.lang.NullPointerException: null
java.lang.NullPointerException
        at org.netbeans.modules.clazz.MemberElementImpl.getCookie(MemberElementImpl.java:96)
        at org.openide.src.Element.<init>(Element.java:53)
        at org.openide.src.MemberElement.<init>(MemberElement.java:36)
        at org.openide.src.ClassElement.<init>(ClassElement.java:98)
        at org.openide.src.ClassElement.<init>(ClassElement.java:89)
        at org.netbeans.modules.clazz.SourceElementImpl.getClassElement(SourceElementImpl.java:147)
        at org.netbeans.modules.clazz.SourceElementImpl.getClasses(SourceElementImpl.java:102)
        at org.openide.src.SourceElement.getClasses(SourceElement.java:227)
        at org.openide.src.nodes.SourceChildren.addKeysOfType(SourceChildren.java:286)
        at org.openide.src.nodes.SourceChildren.refreshAllKeys(SourceChildren.java:267)
        at org.openide.src.nodes.SourceChildren.refreshKeys(SourceChildren.java:253)
        at org.openide.src.nodes.SourceChildren.addNotify(SourceChildren.java:154)
        at org.openide.nodes.Children.callAddNotify(Children.java:296)
        at org.openide.nodes.ChildrenArray.create(ChildrenArray.java:51)
        at org.openide.nodes.Children.getArray(Children.java:325)
        at org.openide.nodes.Children.computeNodes(Children.java:315)
        at org.openide.nodes.Children$2.run(Children.java:253)
        at org.openide.util.Mutex.readAccess(Mutex.java:151)
        at org.openide.nodes.Children.getNodes(Children.java:251)
        at org.openide.nodes.FilterNode$1.run(FilterNode.java:905)
        at org.openide.util.Mutex.leave(Mutex.java:552)
        at org.openide.util.Mutex.readAccess(Mutex.java:153)
        at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:139)
        at org.openide.explorer.view.VisualizerNode.getChildCount(VisualizerNode.java:170)
        at javax.swing.tree.DefaultTreeModel.getChildCount(DefaultTreeModel.java:163)
        at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1412)
        at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1221)
        at javax.swing.tree.VariableHeightLayoutCache.ensurePathIsExpanded(VariableHeightLayoutCache.java:917)
        at javax.swing.tree.VariableHeightLayoutCache.setExpandedState(VariableHeightLayoutCache.java:162)
        at javax.swing.plaf.basic.BasicTreeUI.updateExpandedDescendants(BasicTreeUI.java:1428)
        at javax.swing.plaf.basic.BasicTreeUI$TreeExpansionHandler.treeExpanded(BasicTreeUI.java:2239)
        at javax.swing.JTree.fireTreeExpanded(JTree.java:2114)
        at javax.swing.JTree.setExpandedState(JTree.java:2794)
        at javax.swing.JTree.expandPath(JTree.java:1646)
        at javax.swing.plaf.basic.BasicTreeUI.toggleExpandState(BasicTreeUI.java:2022)
        at javax.swing.plaf.basic.BasicTreeUI.handleExpandControlClick(BasicTreeUI.java:2009)
        at javax.swing.plaf.basic.BasicTreeUI.checkForClickInExpandControl(BasicTreeUI.java:1963)
        at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.mousePressed(BasicTreeUI.java:2674)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:220)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:220)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:220)
        at java.awt.Component.processMouseEvent(Component.java:3712)
        at java.awt.Component.processEvent(Component.java:3544)
        at java.awt.Container.processEvent(Container.java:1164)
        at java.awt.Component.dispatchEventImpl(Component.java:2593)
        at java.awt.Container.dispatchEventImpl(Container.java:1213)
        at java.awt.Component.dispatchEvent(Component.java:2497)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451)
[catch] at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2210)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125)
        at java.awt.Container.dispatchEventImpl(Container.java:1200)
        at java.awt.Window.dispatchEventImpl(Window.java:914)
        at java.awt.Component.dispatchEvent(Component.java:2497)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:103)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)