java.lang.NullPointerException
   at java.awt.datatransfer.SystemFlavorMap.getAllNativesForType(SystemFlavorMap.java:1327)
   at java.awt.datatransfer.SystemFlavorMap.getNativesForFlavor(SystemFlavorMap.java:702)
   at sun.awt.datatransfer.DataTransferer.getFormatsForFlavors(DataTransferer.java:721)
   at sun.awt.windows.WDataTransferer.getFormatsForFlavors(WDataTransferer.java:177)
   at sun.awt.datatransfer.DataTransferer.getFormatsForTransferable(DataTransferer.java:659)
   at sun.awt.windows.WClipboard.setContentsNative(WClipboard.java:75)
   at sun.awt.datatransfer.SunClipboard.setContents(SunClipboard.java:110)
   at org.netbeans.NbClipboard$SetContents.run(NbClipboard.java:462)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.NullPointerException
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:435)
   at org.netbeans.NbClipboard.scheduleSetContents(NbClipboard.java:285)
   at org.netbeans.NbClipboard.setContents(NbClipboard.java:201)
   at org.netbeans.modules.java.editor.imports.ClipboardHandler$ImportingTransferHandler.exportToClipboard(ClipboardHandler.java:538)
   at org.openide.text.QuietEditorPane$DelegatingTransferHandler.exportToClipboard(QuietEditorPane.java:350)
   at javax.swing.TransferHandler$TransferAction.actionPerformedImpl(TransferHandler.java:1753)
   at javax.swing.TransferHandler$TransferAction.access$800(TransferHandler.java:1692)
   at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1715)
   at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1713)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
   at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1730)
   at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1728)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at javax.swing.TransferHandler$TransferAction.actionPerformed(TransferHandler.java:1727)
   at javax.swing.text.JTextComponent.invokeAction(JTextComponent.java:1513)
   at javax.swing.text.JTextComponent.copy(JTextComponent.java:1474)
   at org.netbeans.editor.BaseKit$CopyAction.actionPerformed(BaseKit.java:2032)
   at org.netbeans.editor.BaseAction.actionPerformed(BaseAction.java:339)
   at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1665)
   at javax.swing.JComponent.processKeyBinding(JComponent.java:2879)
   at javax.swing.JComponent.processKeyBindings(JComponent.java:2926)
   at javax.swing.JComponent.processKeyEvent(JComponent.java:2842)
   at java.awt.Component.processEvent(Component.java:6306)
   at java.awt.Container.processEvent(Container.java:2235)
   at java.awt.Component.dispatchEventImpl(Component.java:4885)
   at java.awt.Container.dispatchEventImpl(Container.java:2293)
   at java.awt.Component.dispatchEvent(Component.java:4707)
   at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954)
   at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806)
   at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074)
   at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945)
   at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771)
   at java.awt.Component.dispatchEventImpl(Component.java:4756)
   at java.awt.Container.dispatchEventImpl(Container.java:2293)
   at java.awt.Window.dispatchEventImpl(Window.java:2741)
   at java.awt.Component.dispatchEvent(Component.java:4707)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
   at java.awt.EventQueue.access$400(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:697)
   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:719)
   at java.awt.EventQueue$4.run(EventQueue.java:717)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
   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)