java.lang.IllegalArgumentException: Illegal difference number: 10
   at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.setDifferenceImpl(EditableDiffView.java:564)
   at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.access$2500(EditableDiffView.java:112)
   at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView$3.run(EditableDiffView.java:462)
   at org.netbeans.modules.diff.builtin.visualizer.editable.DiffViewManager.runWithSmartScrollingDisabled(DiffViewManager.java:118)
   at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView.setLocation(EditableDiffView.java:459)
   at org.netbeans.api.diff.DiffController.setLocation(DiffController.java:135)
   at org.netbeans.modules.diff.builtin.SingleDiffPanel$3.propertyChange(SingleDiffPanel.java:177)
   at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
   at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
   at org.netbeans.modules.diff.builtin.visualizer.editable.EditableDiffView$RefreshDiffTask$1.run(EditableDiffView.java:1542)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
   at java.awt.EventQueue.access$500(EventQueue.java:97)
   at java.awt.EventQueue$3.run(EventQueue.java:709)
   at java.awt.EventQueue$3.run(EventQueue.java:703)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)