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:1436)
   at org.netbeans.editor.BaseKit.read(BaseKit.java:668)
   at org.openide.text.DataEditorSupport.loadFromStreamToKit(DataEditorSupport.java:492)
   at org.openide.text.DocumentOpenClose$DocumentLoad.atomicLockedRun(DocumentOpenClose.java:764)
   at org.openide.text.DocumentOpenClose$DocumentLoad.run(DocumentOpenClose.java:615)
   at org.netbeans.editor.GuardedDocument.runAtomic(GuardedDocument.java:323)
   at org.openide.text.NbDocument.runAtomic(NbDocument.java:436)
   at org.openide.text.DocumentOpenClose$DocumentLoad.run(DocumentOpenClose.java:655)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1443)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:68)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:303)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2058)