java.lang.NullPointerException
	at org.netbeans.mdr.handlers.InstanceHandler._handleGetR(InstanceHandler.java:103)
	at org.netbeans.jmi.java.physical.JavaClass$Impl.getConstructors(Unknown Source)
	at org.netbeans.modules.clazz.ClassElementImpl.createConstructorsMap(ClassElementImpl.java:336)
	at org.netbeans.modules.clazz.ClassElementImpl.getConstructors(ClassElementImpl.java:206)
	at org.openide.src.ClassElement.getConstructors(ClassElement.java:567)
	at org.openide.src.nodes.ClassChildren.getKeysOfType(ClassChildren.java:231)
	at org.openide.src.nodes.ClassChildren.refreshKeys(ClassChildren.java:206)
	at org.openide.src.nodes.ClassChildren.refreshAllKeys(ClassChildren.java:195)
	at org.openide.src.nodes.ClassChildren.addNotify(ClassChildren.java:147)
	at org.openide.nodes.Children.callAddNotify(Children.java:420)
	at org.openide.nodes.Children.getArray(Children.java:463)
	at org.openide.nodes.Children.getNodes(Children.java:316)
	at org.openide.nodes.FilterNode$ChildrenAdapter.run(FilterNode.java:1184)
	at org.openide.nodes.FilterNode$Children.updateKeys(FilterNode.java:1141)
	at org.openide.nodes.FilterNode$Children.addNotifyImpl(FilterNode.java:1038)
	at org.openide.nodes.FilterNode$Children.addNotify(FilterNode.java:1030)
	at org.openide.nodes.Children.callAddNotify(Children.java:420)
	at org.openide.nodes.Children.getArray(Children.java:463)
	at org.openide.nodes.Children.getNodes(Children.java:316)
	at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:169)
	at org.openide.explorer.view.VisualizerNode.getChildCount(VisualizerNode.java:213)
	at javax.swing.tree.DefaultTreeModel.getChildCount(DefaultTreeModel.java:168)
	at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1461)
	at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1270)
	at javax.swing.tree.VariableHeightLayoutCache.ensurePathIsExpanded(VariableHeightLayoutCache.java:966)
	at javax.swing.tree.VariableHeightLayoutCache.setExpandedState(VariableHeightLayoutCache.java:164)
	at javax.swing.plaf.basic.BasicTreeUI.updateExpandedDescendants(BasicTreeUI.java:1494)
	at javax.swing.plaf.basic.BasicTreeUI$TreeExpansionHandler.treeExpanded(BasicTreeUI.java:2314)
	at javax.swing.JTree.fireTreeExpanded(JTree.java:2228)
	at javax.swing.JTree.setExpandedState(JTree.java:2999)
	at javax.swing.JTree.expandPath(JTree.java:1735)
	at javax.swing.plaf.basic.BasicTreeUI.toggleExpandState(BasicTreeUI.java:2095)
	at javax.swing.plaf.basic.BasicTreeUI.handleExpandControlClick(BasicTreeUI.java:2082)
	at javax.swing.plaf.basic.BasicTreeUI.checkForClickInExpandControl(BasicTreeUI.java:2036)
	at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.handleSelection(BasicTreeUI.java:2831)
	at javax.swing.plaf.basic.BasicTreeUI$MouseHandler.mousePressed(BasicTreeUI.java:2801)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:222)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
	at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221)
	at java.awt.Component.processMouseEvent(Component.java:5097)
	at java.awt.Component.processEvent(Component.java:4897)
	at java.awt.Container.processEvent(Container.java:1569)
	at java.awt.Component.dispatchEventImpl(Component.java:3615)
	at java.awt.Container.dispatchEventImpl(Container.java:1627)
	at java.awt.Component.dispatchEvent(Component.java:3477)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3195)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
	at java.awt.Container.dispatchEventImpl(Container.java:1613)
	at java.awt.Window.dispatchEventImpl(Window.java:1606)
	at java.awt.Component.dispatchEvent(Component.java:3477)
[catch] at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)