java.lang.NullPointerException
        at org.netbeans.modules.swingapp.ActionPropertyEditorPanel$3.getListCellRendererComponent(ActionPropertyEditorPanel.java:169)
        at com.apple.laf.AquaComboBoxButton.doRendererPaint(AquaComboBoxButton.java:147)
        at com.apple.laf.AquaComboBoxButton.paintComponent(AquaComboBoxButton.java:139)
        at javax.swing.JComponent.paint(JComponent.java:1029)
        at javax.swing.JComponent.paintChildren(JComponent.java:864)
        at javax.swing.JComponent.paint(JComponent.java:1038)
        at javax.swing.JComponent.paintChildren(JComponent.java:864)
        at javax.swing.JComponent.paint(JComponent.java:1038)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5098)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4882)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:829)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
        at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
        at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:125)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:205)
        at java.awt.Dialog$1.run(Dialog.java:1045)
        at java.awt.Dialog$3.run(Dialog.java:1097)
        at java.security.AccessController.doPrivileged(AccessController.java:0)
        at java.awt.Dialog.show(Dialog.java:1095)
        at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:985)
        at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1019)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1007)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:115)
        at org.openide.util.Mutex.doEventAccess(Mutex.java:1355)
        at org.openide.util.Mutex.readAccess(Mutex.java:268)
        at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:992)
        at java.awt.Component.show(Component.java:1563)
        at java.awt.Component.setVisible(Component.java:1515)
        at java.awt.Window.setVisible(Window.java:841)
        at java.awt.Dialog.setVisible(Dialog.java:985)
        at org.netbeans.core.NotifyExcPanel.updateState(NotifyExcPanel.java:399)
        at org.netbeans.core.NotifyExcPanel.access$400(NotifyExcPanel.java:94)
        at org.netbeans.core.NotifyExcPanel$2.run(NotifyExcPanel.java:330)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:125)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:205)
        at java.awt.Dialog$1.run(Dialog.java:1045)
        at java.awt.Dialog$3.run(Dialog.java:1097)
        at java.security.AccessController.doPrivileged(AccessController.java:0)
        at java.awt.Dialog.show(Dialog.java:1095)
        at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:985)
        at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1019)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1007)
        at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:115)
        at org.openide.util.Mutex.doEventAccess(Mutex.java:1355)
        at org.openide.util.Mutex.readAccess(Mutex.java:268)
        at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:992)
        at java.awt.Component.show(Component.java:1563)
        at java.awt.Component.setVisible(Component.java:1515)
        at java.awt.Window.setVisible(Window.java:841)
        at java.awt.Dialog.setVisible(Dialog.java:985)
        at org.netbeans.modules.form.actions.PropertyAction.actionPerformed(PropertyAction.java:129)
        at org.netbeans.modules.swingapp.JumpToOrCreateNewAction.performAction(JumpToOrCreateNewAction.java:117)
        at org.openide.util.actions.NodeAction$1.run(NodeAction.java:270)
        at org.netbeans.modules.openide.util.ActionsBridge.implPerformAction(ActionsBridge.java:83)
        at org.netbeans.modules.openide.util.ActionsBridge.doPerformAction(ActionsBridge.java:64)
        at org.openide.util.actions.NodeAction.actionPerformed(NodeAction.java:266)
        at org.netbeans.modules.form.HandleLayer.processDoubleClick(HandleLayer.java:1112)
        at org.netbeans.modules.form.HandleLayer.mousePressed(HandleLayer.java:1926)
        at java.awt.Component.processMouseEvent(Component.java:6345)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
        at java.awt.Component.processEvent(Component.java:6113)
        at java.awt.Container.processEvent(Container.java:2085)
        at java.awt.Component.dispatchEventImpl(Component.java:4714)
        at java.awt.Container.dispatchEventImpl(Container.java:2143)
        at java.awt.Component.dispatchEvent(Component.java:4544)
        at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4618)
        at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4279)
        at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4212)
        at java.awt.Container.dispatchEventImpl(Container.java:2129)
        at java.awt.Window.dispatchEventImpl(Window.java:2475)
        at java.awt.Component.dispatchEvent(Component.java:4544)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:635)
        at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:125)
        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)