java.io.IOException: system clipboard data unavailable
   at sun.awt.windows.WClipboard.getClipboardData(WClipboard.java:0)
   at sun.awt.datatransfer.ClipboardTransferable.fetchOneFlavor(ClipboardTransferable.java:118)
   at sun.awt.datatransfer.ClipboardTransferable.<init>(ClipboardTransferable.java:97)
   at sun.awt.datatransfer.SunClipboard.getContents(SunClipboard.java:147)
   at org.netbeans.NbClipboard.getContents(NbClipboard.java:216)
   at net.java.dev.nbmodules.copypastehistory.controllers.ClipboardHistoryController.clipboardChanged(ClipboardHistoryController.java:52)
   at org.openide.util.datatransfer.ExClipboard.fireClipboardChange(ExClipboard.java:96)
   at org.netbeans.NbClipboard.flavorsChanged(NbClipboard.java:341)
   at sun.awt.datatransfer.SunClipboard$1SunFlavorChangeNotifier.run(SunClipboard.java:448)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:705)
   at java.awt.EventQueue.access$000(EventQueue.java:101)
   at java.awt.EventQueue$3.run(EventQueue.java:666)
   at java.awt.EventQueue$3.run(EventQueue.java:664)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:675)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:153)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:211)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:90)