java.lang.NullPointerException
	at org.netbeans.modules.java.srclessopen.CodeGenerator$TreeBuilder.computeSuper(CodeGenerator.java:263)
	at org.netbeans.modules.java.srclessopen.CodeGenerator$TreeBuilder.visitType(CodeGenerator.java:211)
	at org.netbeans.modules.java.srclessopen.CodeGenerator$TreeBuilder.visitType(CodeGenerator.java:183)
	at com.sun.tools.javac.code.Symbol$ClassSymbol.accept(Symbol.java:859)
	at javax.lang.model.util.AbstractElementVisitor6.visit(AbstractElementVisitor6.java:102)
	at org.netbeans.modules.java.srclessopen.CodeGenerator.generateCode(CodeGenerator.java:174)
	at org.netbeans.modules.java.srclessopen.CodeGenerator$1.run(CodeGenerator.java:147)
	at org.netbeans.modules.java.srclessopen.CodeGenerator$1.run(CodeGenerator.java:104)
	at org.netbeans.api.java.source.JavaSource.runModificationTask(JavaSource.java:953)
	at org.netbeans.modules.java.srclessopen.CodeGenerator.generateCode(CodeGenerator.java:104)
	at org.netbeans.modules.java.srclessopen.BinaryElementOpenImpl.open(BinaryElementOpenImpl.java:45)
	at org.netbeans.modules.java.ClassDataObject$OpenSourceCookie.open(ClassDataObject.java:120)
	at org.openide.actions.OpenAction.performAction(OpenAction.java:81)
	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.netbeans.modules.openfile.DefaultOpenFileImpl.open(DefaultOpenFileImpl.java:571)
	at org.netbeans.modules.openfile.OpenFile.open(OpenFile.java:72)
	at org.netbeans.modules.openfile.OpenFile.openFile(OpenFile.java:97)
	at org.netbeans.modules.openfile.OpenFileAction.actionPerformed(OpenFileAction.java:128)
	at org.openide.awt.AlwaysEnabledAction.actionPerformed(AlwaysEnabledAction.java:89)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1220)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1261)
	at java.awt.Component.processMouseEvent(Component.java:6041)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5806)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4413)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
	at java.awt.Container.dispatchEventImpl(Container.java:2102)
	at java.awt.Window.dispatchEventImpl(Window.java:2440)
	at java.awt.Component.dispatchEvent(Component.java:4243)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:104)
	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)