java.lang.NullPointerException at java.io.FileInputStream.(FileInputStream.java:103) at org.netbeans.modules.refactoring.spi.BackupFacility$DefaultImpl.copy(BackupFacility.java:270) at org.netbeans.modules.refactoring.spi.BackupFacility$DefaultImpl.backup(BackupFacility.java:209) at org.netbeans.modules.refactoring.spi.BackupFacility$DefaultImpl.backup(BackupFacility.java:195) at org.netbeans.modules.refactoring.spi.BackupFacility.backup(BackupFacility.java:122) at org.netbeans.modules.cnd.refactoring.support.RefactoringCommit.commit(RefactoringCommit.java:86) at org.netbeans.modules.refactoring.api.RefactoringSession.doRefactoring(RefactoringSession.java:126) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$8.run(ParametersPanel.java:402) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968) Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException at org.openide.util.RequestProcessor.post(RequestProcessor.java:425) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel.refactor(ParametersPanel.java:375) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel.refactor(ParametersPanel.java:419) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel.access$200(ParametersPanel.java:87) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel$3.actionPerformed(ParametersPanel.java:243) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242) at javax.swing.AbstractButton.doClick(AbstractButton.java:357) at javax.swing.plaf.basic.BasicRootPaneUI$Actions.actionPerformed(BasicRootPaneUI.java:191) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1639) at javax.swing.JComponent.processKeyBinding(JComponent.java:2851) at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:267) at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:216) at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2928) at javax.swing.JComponent.processKeyBindings(JComponent.java:2920) at javax.swing.JComponent.processKeyEvent(JComponent.java:2814) at java.awt.Component.processEvent(Component.java:6044) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676) at java.awt.Component.dispatchEventImpl(Component.java:4502) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178) at java.awt.Dialog$1.run(Dialog.java:1046) at java.awt.Dialog$3.run(Dialog.java:1098) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.awt.Dialog.show(Dialog.java:1096) at org.netbeans.core.windows.services.NbPresenter.superShow(NbPresenter.java:1038) at org.netbeans.core.windows.services.NbPresenter.doShow(NbPresenter.java:1072) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:1060) at org.netbeans.core.windows.services.NbPresenter.run(NbPresenter.java:126) at org.openide.util.Mutex.doEventAccess(Mutex.java:1361) at org.openide.util.Mutex.readAccess(Mutex.java:271) at org.netbeans.core.windows.services.NbPresenter.show(NbPresenter.java:1045) at java.awt.Component.show(Component.java:1563) at java.awt.Component.setVisible(Component.java:1515) at java.awt.Window.setVisible(Window.java:842) at java.awt.Dialog.setVisible(Dialog.java:986) at org.netbeans.modules.refactoring.spi.impl.ParametersPanel.showDialog(ParametersPanel.java:554) at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.refresh(RefactoringPanel.java:599) at org.netbeans.modules.refactoring.spi.impl.RefactoringPanel.(RefactoringPanel.java:151) at org.netbeans.modules.refactoring.spi.ui.UI.openRefactoringUI(UI.java:86) at org.netbeans.modules.cnd.refactoring.actions.RefactoringActionsProvider$TextComponentTask.run(RefactoringActionsProvider.java:181) at org.netbeans.modules.cnd.refactoring.actions.RefactoringActionsProvider.doRename(RefactoringActionsProvider.java:156) at org.netbeans.modules.refactoring.api.impl.ActionsImplementationFactory.doRename(ActionsImplementationFactory.java:86) at org.netbeans.modules.refactoring.spi.impl.RenameAction.performAction(RenameAction.java:65) at org.netbeans.modules.refactoring.spi.impl.RefactoringGlobalAction$ContextAction.actionPerformed(RefactoringGlobalAction.java:186) at org.netbeans.modules.cnd.refactoring.actions.InstantRenamePerformer.doFullRename(InstantRenamePerformer.java:230) at org.netbeans.modules.cnd.refactoring.actions.InstantRenamePerformer.invokeInstantRename(InstantRenamePerformer.java:188) at org.netbeans.modules.cnd.refactoring.actions.InstantRenameAction.actionPerformed(InstantRenameAction.java:65) at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1639) at javax.swing.JComponent.processKeyBinding(JComponent.java:2851) at javax.swing.JComponent.processKeyBindings(JComponent.java:2886) at javax.swing.JComponent.processKeyEvent(JComponent.java:2814) at java.awt.Component.processEvent(Component.java:6044) at java.awt.Container.processEvent(Container.java:2041) at java.awt.Component.dispatchEventImpl(Component.java:4630) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1850) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:712) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:990) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:855) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:676) at java.awt.Component.dispatchEventImpl(Component.java:4502) at java.awt.Container.dispatchEventImpl(Container.java:2099) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4460) at java.awt.EventQueue.dispatchEvent(EventQueue.java:599) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:148) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)