java.lang.NullPointerException at java.util.Hashtable.get(Hashtable.java:329) at java.util.Properties.getProperty(Properties.java:483) at org.netbeans.modules.sysprops.PropertyNode.setName(PropertyNode.java:270) at org.netbeans.modules.sysprops.SystemPropertiesNode.(SystemPropertiesNode.java:52) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:42) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:30) at java.lang.reflect.Constructor.newInstance(Constructor.java:277) at java.lang.Class.newInstance0(Class.java:301) at java.lang.Class.newInstance(Class.java:254) at org.netbeans.core.modules.ManifestSection.createInstance(ManifestSection.java:179) at org.netbeans.core.modules.ManifestSection.getInstance(ManifestSection.java:195) at org.netbeans.core.NbPlaces$Ch.createNodes(NbPlaces.java:296) at org.openide.nodes.Children$Keys$KE.nodes(Children.java:1826) at org.openide.nodes.ChildrenArray.nodesFor(ChildrenArray.java:125) at org.openide.nodes.Children$Info.nodes(Children.java:929) at org.openide.nodes.Children.updateAdd(Children.java:737) at org.openide.nodes.Children.setEntries(Children.java:526) at org.openide.nodes.Children$3.run(Children.java:1719) at org.openide.util.Mutex.leave(Mutex.java:609) at org.openide.util.Mutex.readAccess(Mutex.java:178) at org.openide.explorer.view.VisualizerNode.getChildren(VisualizerNode.java:142) at org.openide.explorer.view.VisualizerNode.getChildCount(VisualizerNode.java:182) at javax.swing.tree.DefaultTreeModel.getChildCount(DefaultTreeModel.java:171) at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1464) at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.expand(VariableHeightLayoutCache.java:1273) at javax.swing.tree.VariableHeightLayoutCache.rebuild(VariableHeightLayoutCache.java:728) at javax.swing.tree.VariableHeightLayoutCache.treeStructureChanged(VariableHeightLayoutCache.java:629) at javax.swing.plaf.basic.BasicTreeUI$TreeModelHandler.treeStructureChanged(BasicTreeUI.java:2470) at javax.swing.tree.DefaultTreeModel.fireTreeStructureChanged(DefaultTreeModel.java:564) at javax.swing.tree.DefaultTreeModel.nodeStructureChanged(DefaultTreeModel.java:348) at javax.swing.tree.DefaultTreeModel.setRoot(DefaultTreeModel.java:120) at org.openide.explorer.view.NodeTreeModel$1.run(NodeTreeModel.java:77) at org.openide.util.Mutex.doEvent(Mutex.java:902) at org.openide.util.Mutex.readAccess(Mutex.java:234) at org.openide.explorer.view.NodeTreeModel.setNode(NodeTreeModel.java:64) at org.openide.explorer.view.TreeView.synchronizeRootContext(TreeView.java:584) at org.openide.explorer.view.TreeView.addNotify(TreeView.java:484) at java.awt.Container.addNotify(Container.java:1862) at javax.swing.JComponent.addNotify(JComponent.java:4273) at java.awt.Container.addImpl(Container.java:479) at javax.swing.JTabbedPane.insertTab(JTabbedPane.java:571) at org.netbeans.core.windows.frames.SplitContainerImpl.componentAdded(SplitContainerImpl.java:399) at org.netbeans.core.windows.frames.DefaultContainerImpl.addTopComponent(DefaultContainerImpl.java:276) at org.netbeans.core.windows.ModeImpl.addToContainer(ModeImpl.java:1725) at org.netbeans.core.windows.ModeImpl.access$400(ModeImpl.java:76) at org.netbeans.core.windows.ModeImpl$1.performCommand(ModeImpl.java:392) at org.netbeans.core.windows.DeferredPerformer.processCommand(DeferredPerformer.java:186) at org.netbeans.core.windows.DeferredPerformer.putRequest(DeferredPerformer.java:83) at org.netbeans.core.windows.ModeImpl.dockInto(ModeImpl.java:373) at org.netbeans.core.windows.ModeImpl.dockInto(ModeImpl.java:353) at org.netbeans.core.windows.ModeImpl.dockInto(ModeImpl.java:341) at org.netbeans.core.windows.WindowManagerImpl$TopComponentManager.doOpen(WindowManagerImpl.java:1427) at org.netbeans.core.windows.WindowManagerImpl$TopComponentManager.open(WindowManagerImpl.java:1384) at org.openide.windows.TopComponent.open(TopComponent.java:212) at org.openide.explorer.ExplorerPanel.open(ExplorerPanel.java:81) at org.netbeans.core.NbMainExplorer$ExplorerTab.open(NbMainExplorer.java:519) at org.netbeans.core.NbMainExplorer$MainTab.open(NbMainExplorer.java:737) at org.netbeans.core.windows.layers.TCRefImpl.performCommand(TCRefImpl.java:163) at org.netbeans.core.windows.DeferredPerformer.processCommand(DeferredPerformer.java:186) at org.netbeans.core.windows.DeferredPerformer.stateChanged(DeferredPerformer.java:155) at org.netbeans.core.windows.StateManager.fireStateChanged(StateManager.java:117) at org.netbeans.core.windows.StateManager.setVisibilityState(StateManager.java:142) at org.netbeans.core.windows.StateManager.propertyChange(StateManager.java:164) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:333) at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:260) at java.awt.Component.firePropertyChange(Component.java:6610) at org.netbeans.core.windows.MainWindow.doShowWindow(MainWindow.java:234) at org.netbeans.core.windows.MainWindow.access$300(MainWindow.java:57) at org.netbeans.core.windows.MainWindow$4.run(MainWindow.java:210) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:181) at java.awt.EventQueue.dispatchEvent(EventQueue.java:446) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:193) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:147) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:141) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:133) at java.awt.EventDispatchThread.run(EventDispatchThread.java:101)