java.lang.NullPointerException
        at org.netbeans.modules.j2ee.sun.ddloaders.SunDescriptorDataObject.getJ2eeModuleVersion(SunDescriptorDataObject.java:231)
        at org.netbeans.modules.j2ee.sun.ddloaders.DDViewFactory$SunEjbJarDDViewFactory.getMultiViewDesc(DDViewFactory.java:155)
        at org.netbeans.modules.j2ee.sun.ddloaders.SunDescriptorDataObject.getMultiViewDesc(SunDescriptorDataObject.java:510)
        at org.netbeans.modules.xml.multiview.XmlMultiViewEditorSupport.getMultiViewDescriptions(XmlMultiViewEditorSupport.java:370)
        at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject.getEditorSupport(XmlMultiViewDataObject.java:99)
        at org.netbeans.modules.xml.multiview.XmlMultiViewDataObject.createCookie(XmlMultiViewDataObject.java:89)
        at org.openide.nodes.CookieSet$CookieEntry.getCookie(CookieSet.java:553)
        at org.openide.nodes.CookieSet$CookieEntryPair.getInstance(CookieSet.java:701)
        at org.openide.explorer.DefaultEMLookup$NoNodeLookup$ExclusionResult.allItems(DefaultEMLookup.java:233)
        at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:463)
        at org.openide.util.lookup.ProxyLookup$R.allItems(ProxyLookup.java:418)
        at org.openide.util.lookup.ProxyLookup$R.collectFires(ProxyLookup.java:521)
        at org.openide.util.lookup.ProxyLookup.setLookups(ProxyLookup.java:161)
        at org.openide.explorer.DefaultEMLookup.updateLookups(DefaultEMLookup.java:109)
        at org.openide.explorer.DefaultEMLookup.propertyChange(DefaultEMLookup.java:141)
        at org.openide.util.WeakListenerImpl$PropertyChange.propertyChange(WeakListenerImpl.java:164)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
        at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
        at org.openide.explorer.ExplorerManager$2.run(ExplorerManager.java:814)
        at org.openide.util.Mutex.doEvent(Mutex.java:1181)
        at org.openide.util.Mutex.readAccess(Mutex.java:287)
        at org.openide.explorer.ExplorerManager.fireInAWT(ExplorerManager.java:811)
        at org.openide.explorer.ExplorerManager.access$600(ExplorerManager.java:67)
        at org.openide.explorer.ExplorerManager$1AtomicSetSelectedNodes.fire(ExplorerManager.java:259)
        at org.openide.explorer.ExplorerManager.setSelectedNodes(ExplorerManager.java:272)
        at org.openide.explorer.ExplorerManager$1SetExploredContextAndSelection.run(ExplorerManager.java:358)
        at org.openide.util.Mutex.readAccess(Mutex.java:296)
        at org.openide.explorer.ExplorerManager.setExploredContextAndSelection(ExplorerManager.java:383)
        at org.openide.explorer.view.BeanTreeView.selectionChanged(BeanTreeView.java:133)
        at org.openide.explorer.view.TreeView.callSelectionChanged(TreeView.java:729)
        at org.openide.explorer.view.TreeView$TreePropertyListener.run(TreeView.java:1285)
        at org.openide.util.Mutex.postRequest(Mutex.java:1140)
        at org.openide.util.Mutex.postReadRequest(Mutex.java:473)
        at org.openide.explorer.view.TreeView$TreePropertyListener.valueChanged(TreeView.java:1256)
        at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)
        at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1078)
        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287)
        at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170)
        at javax.swing.JTree.setSelectionPath(JTree.java:1598)
        at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2316)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3517)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressedDND(BasicTreeUI.java:3494)
        at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3453)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:262)
        at java.awt.Component.processMouseEvent(Component.java:6035)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5803)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4410)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3983)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2429)
        at java.awt.Component.dispatchEvent(Component.java:4240)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)