java.lang.NullPointerException
   at org.netbeans.core.startup.preferences.NbPreferences.put(NbPreferences.java:162)
   at org.netbeans.modules.nodejs.DefaultExectable.setNodeExecutable(DefaultExectable.java:134)
   at org.netbeans.modules.nodejs.options.NodePanel.store(NodePanel.java:459)
   at org.netbeans.modules.nodejs.options.NodeOptionsPanelController.applyChanges(NodeOptionsPanelController.java:68)
   at org.netbeans.modules.options.advanced.Model$DelegatingController.applyChanges(Model.java:306)
   at org.netbeans.modules.options.advanced.Model.applyChanges(Model.java:189)
   at org.netbeans.modules.options.advanced.AdvancedPanel.applyChanges(AdvancedPanel.java:106)
   at org.netbeans.modules.options.advanced.AdvancedPanelController.applyChanges(AdvancedPanelController.java:77)
   at org.netbeans.modules.options.CategoryModel$Category.applyChanges(CategoryModel.java:390)
   at org.netbeans.modules.options.CategoryModel$Category.access$1000(CategoryModel.java:319)
   at org.netbeans.modules.options.CategoryModel.save(CategoryModel.java:218)
   at org.netbeans.modules.options.OptionsPanel.save(OptionsPanel.java:210)
   at org.netbeans.modules.options.OptionsDisplayerImpl$OptionsPanelListener.actionPerformed(OptionsDisplayerImpl.java:339)
   at org.netbeans.core.windows.services.NbPresenter$ButtonListener.actionPerformed(NbPresenter.java:1327)
   at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
   at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
   at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
   at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
   at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
   at java.awt.Component.processMouseEvent(Component.java:6373)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
   at java.awt.Component.processEvent(Component.java:6138)
   at java.awt.Container.processEvent(Container.java:2085)
   at java.awt.Component.dispatchEventImpl(Component.java:4735)
   at java.awt.Container.dispatchEventImpl(Container.java:2143)
   at java.awt.Component.dispatchEvent(Component.java:4565)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4621)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4282)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4212)
   at java.awt.Container.dispatchEventImpl(Container.java:2129)
   at java.awt.Window.dispatchEventImpl(Window.java:2478)
   at java.awt.Component.dispatchEvent(Component.java:4565)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:679)
   at java.awt.EventQueue.access$000(EventQueue.java:85)
   at java.awt.EventQueue$1.run(EventQueue.java:638)
   at java.awt.EventQueue$1.run(EventQueue.java:636)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
   at java.awt.EventQueue$2.run(EventQueue.java:652)
   at java.awt.EventQueue$2.run(EventQueue.java:650)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:649)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)