java.util.NoSuchElementException
   at java.util.LinkedList.getFirst(LinkedList.java:244)
   at java.awt.DefaultKeyboardFocusManager.repostIfFollowsKeyEvents(DefaultKeyboardFocusManager.java:290)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:325)
   at java.awt.Component.dispatchEventImpl(Component.java:4749)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Window.dispatchEventImpl(Window.java:2724)
   at java.awt.Component.dispatchEvent(Component.java:4700)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:743)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:694)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:716)
   at java.awt.EventQueue$4.run(EventQueue.java:714)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:713)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.SequencedEvent.dispatch(SequencedEvent.java:128)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:741)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:694)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
   at java.awt.EventQueue$4.run(EventQueue.java:716)
   at java.awt.EventQueue$4.run(EventQueue.java:714)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:713)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:220)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:135)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:127)
   at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:184)
   at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:229)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
   at java.awt.Dialog.show(Dialog.java:1084)
   at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1078)
   at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1128)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1100)
   at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:128)
   at org.openide.util.Mutex.doEventAccess(Mutex.java:1368)
   at org.openide.util.Mutex.readAccess(Mutex.java:278)
   at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1085)
   at java.awt.Component.show(Component.java:1656)
   at java.awt.Component.setVisible(Component.java:1608)
   at java.awt.Window.setVisible(Window.java:1014)
   at java.awt.Dialog.setVisible(Dialog.java:1005)
   at org.netbeans.modules.refactoring.spi.impl.ParametersPanel.showDialog(ParametersPanel.java:667)
   at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.refresh(RefactoringPanel.java:680)
   at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.<init>(RefactoringPanel.java:168)
   at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.<init>(RefactoringPanel.java:156)
   at org.netbeans.modules.refactoring.spi.ui.UI.openRefactoringUI(UI.java:75)
   at org.netbeans.modules.refactoring.java.ui.ContextAnalyzer$NodeToFileObjectTask.run(ContextAnalyzer.java:624)
   at org.netbeans.api.java.source.ui.ScanDialog.runWhenScanFinished(ScanDialog.java:153)
   at org.netbeans.modules.refactoring.java.ui.RefactoringActionsProvider.doDelete(RefactoringActionsProvider.java:235)
   at org.netbeans.modules.refactoring.api.impl.ActionsImplementationFactory.doDelete(ActionsImplementationFactory.java:140)
   at org.netbeans.modules.refactoring.spi.impl.SafeDeleteAction.performAction(SafeDeleteAction.java:101)
   at org.netbeans.modules.refactoring.spi.impl.RefactoringGlobalAction.performAction(RefactoringGlobalAction.java:140)
   at org.netbeans.modules.refactoring.spi.impl.SafeDeleteAction$1.run(SafeDeleteAction.java:151)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:741)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:694)
   at java.awt.EventQueue$3.run(EventQueue.java:691)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:711)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:220)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:135)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:123)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:119)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:111)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:97)