java.lang.OutOfMemoryError: GC overhead limit exceeded
   at org.openide.util.lookup.ProxyLookup$R.newResults(ProxyLookup.java:365)
   at org.openide.util.lookup.ProxyLookup$R.lookupChange(ProxyLookup.java:455)
   at org.openide.util.lookup.ProxyLookup.setData(ProxyLookup.java:313)
   at org.openide.util.lookup.ProxyLookup.lookup(ProxyLookup.java:261)
   at org.openide.util.lookup.ProxyLookup$R.initResults(ProxyLookup.java:390)
   at org.openide.util.lookup.ProxyLookup$R.myBeforeLookup(ProxyLookup.java:673)
   at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:553)
   at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:513)
   at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:509)
   at org.openide.util.Lookup.lookupAll(Lookup.java:312)
   at org.openide.text.CloneableEditorSupportRedirector.findRedirect(CloneableEditorSupportRedirector.java:78)
   at org.openide.text.CloneableEditorSupportRedirector.findRedirect(CloneableEditorSupportRedirector.java:64)
   at org.openide.text.CloneableEditorSupport.getUndoRedo(CloneableEditorSupport.java:351)
   at org.openide.text.CloneableEditorSupport$4.run(CloneableEditorSupport.java:741)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable$1.run(BeforeSaveTasks.java:162)
   at org.netbeans.editor.GuardedDocument.runAtomicAsUser(GuardedDocument.java:356)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:156)
   at org.netbeans.modules.editor.lib.TrailingWhitespaceRemove.runLocked(TrailingWhitespaceRemove.java:102)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:153)
   at org.netbeans.modules.editor.impl.ReformatBeforeSaveTask.runLocked(ReformatBeforeSaveTask.java:124)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks$TaskRunnable.run(BeforeSaveTasks.java:153)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks.runTasks(BeforeSaveTasks.java:130)
   at org.netbeans.modules.editor.lib.BeforeSaveTasks$2.run(BeforeSaveTasks.java:111)
   at org.openide.text.CloneableEditorSupport.saveDocumentImpl(CloneableEditorSupport.java:753)
   at org.openide.text.CloneableEditorSupport.saveDocument(CloneableEditorSupport.java:644)
   at org.openide.text.DataEditorSupport.superSaveDoc(DataEditorSupport.java:607)
   at org.openide.text.DataEditorSupport$SaveImpl.run(DataEditorSupport.java:1378)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:127)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:519)
   at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:423)
   at org.openide.text.DataEditorSupport.saveDocument(DataEditorSupport.java:603)
   at org.netbeans.modules.csl.core.GsfDataObject$GenericEditorSupport$Environment$SaveSupport.save(GsfDataObject.java:224)