Jdeveloper 11 r1 An unexpected severe error has ocurred in Jdeveloper

I often get this error while working on jdeveloper r1



I checked in forums and I saw that other people have it too.
http://forums.oracle.com/forums/thread.jspa?messageID=3609674&#3609674
and there is a bug 8677319 to track this issue.
But i am not sure its the same issue since i have different error log and it is not related with how much time you work with jdeveloper:
Invoking command: Insert[ from oracle.ide.ceditor.CodeEditor ]oracle.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable$1:26-Jul-2009 13:23:20 oracle.javatools.logging.LogUtils logWARNING: Exception in task oracle.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable$1@1e5a4d4 on model oracle.adfdtinternal.model.ide.navigator.nodes.PageDefinitionXmlModel@191c28b; txn name=non-dom transaction: oracle.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable$1 org.w3c.dom.DOMException: Not selection document:oracle.xml.parser.v2.XMLDocument@1f9ee33 at oracle.bali.xml.model.Selection.checkValidNode(Selection.java:572) at oracle.bali.xml.model.Selection.add(Selection.java:321) at oracle.bali.xml.model.Selection.set(Selection.java:287) at oracle.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable$1.performTask(PageToPageDefinitionSyncModelListener.java:118) at oracle.bali.xml.model.task.StandardTransactionTask.runThrowingXCE(StandardTransactionTask.java:172) at oracle.bali.xml.model.task.StandardTransactionTask.run(StandardTransactionTask.java:103) at oracle.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable.run(PageToPageDefinitionSyncModelListener.java:113) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Uncaught exceptionorg.w3c.dom.DOMException: Not selection document:oracle.xml.parser.v2.XMLDocument@1f9ee33 o.bali.xml.model.Selection.checkValidNode(Selection.java:572) o.bali.xml.model.Selection.add(Selection.java:321) o.bali.xml.model.Selection.set(Selection.java:287) o.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable$1.performTask(PageToPageDefinitionSyncModelListener.java:118) o.bali.xml.model.task.StandardTransactionTask.runThrowingXCE(StandardTransactionTask.java:172) o.bali.xml.model.task.StandardTransactionTask.run(StandardTransactionTask.java:103) o.adfdtinternal.view.rich.binding.addin.PageToPageDefinitionSyncModelListener$SyncRunnable.run(PageToPageDefinitionSyncModelListener.java:113) j.a.event.InvocationEvent.dispatch(InvocationEvent.java:209) j.a.EventQueue.dispatchEvent(EventQueue.java:597) j.a.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) j.a.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) j.a.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) j.a.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) j.a.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) j.a.EventDispatchThread.run(EventDispatchThread.java:122)

I manage to reproduce it in the same simple test case of previous post
http://adfbugs.googlecode.com/files/TestPPR.zip

The steps to reproduce it are:
Open TestPPR.jspx in source view
Open TestPPRPageDef.xml in source view
make any change in TestPPRPageDef.xml (i.e. id="Next" to id="Next1")
Go to TestPPR.jspx and click on diferent places of code
the error will appear then
I hope this help to solve this bug.