java.lang.OutOfMemoryError: Java heap space
   at org.netbeans.modules.editor.lib2.document.ReadWriteUtils.read(ReadWriteUtils.java:74)
   at org.netbeans.editor.BaseDocument.read(BaseDocument.java:1433)
   at org.netbeans.editor.BaseKit.read(BaseKit.java:707)
   at org.openide.text.DataEditorSupport.loadFromStreamToKit(DataEditorSupport.java:487)
   at org.openide.text.CloneableEditorSupport.loadDocument(CloneableEditorSupport.java:2196)
   at org.openide.text.CloneableEditorSupport.access$2700(CloneableEditorSupport.java:129)
   at org.openide.text.CloneableEditorSupport$Listener.run(CloneableEditorSupport.java:3045)
   at org.openide.text.CloneableEditorSupport$3.doRun(CloneableEditorSupport.java:728)
   at org.openide.text.CloneableEditorSupport$3.run(CloneableEditorSupport.java:695)
   at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:317)
   at org.openide.text.NbDocument.runAtomic(NbDocument.java:436)
   at org.openide.text.CloneableEditorSupport$3.doRun(CloneableEditorSupport.java:705)
   at org.openide.text.CloneableEditorSupport$3.run(CloneableEditorSupport.java:695)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2044)