java.lang.NullPointerException
        at org.netbeans.modules.xml.wsdl.ui.actions.WSDLViewOpenAction.performAction(WSDLViewOpenAction.java:59)
        at org.openide.util.actions.NodeAction$DelegateAction$1.run(NodeAction.java:581)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:77)
        at org.openide.util.actions.NodeAction$DelegateAction.actionPerformed(NodeAction.java:577)
        at org.openide.explorer.view.TreeView$PopupSupport.mouseClicked(TreeView.java:1439)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:212)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
        at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:211)
        at java.awt.Component.processMouseEvent(Component.java:5520)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
        at java.awt.Component.processEvent(Component.java:5282)
        at java.awt.Container.processEvent(Container.java:1966)
        at java.awt.Component.dispatchEventImpl(Component.java:3984)
        at java.awt.Container.dispatchEventImpl(Container.java:2024)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4212)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:3901)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:3822)
        at java.awt.Container.dispatchEventImpl(Container.java:2010)
        at java.awt.Window.dispatchEventImpl(Window.java:1791)
        at java.awt.Component.dispatchEvent(Component.java:3819)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)