Oracel ADF jmeter stress test Could not find saved view state for token -8c
I run Oracle ADF in 11.1.1.6 version. While I follow step by step posted by Chris Muir's to configure Jmeter to load test my Oracle ADF application "http://download.oracle.com/otn_hosted_doc/jdeveloper/11gdemos/adfjmeter/adfjmeter.html". The test in jmeter is a simple create page which insert one new entry into database. The jmeter report look fine without error. But there are no record input to database after run the jmeter. The webloigc log show error.
<Error> <org.apache.myfaces.trinidadinternal.application.StateManagerImpl> <BEA-000000> <Could not find saved view state for token -8cdfwphd0>
<Warning> <oracle.adfinternal.view.faces.lifecycle.LifecycleImpl> <BEA-000000> <ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase RESTORE_VIEW 1
javax.faces.application.ViewExpiredException: viewId:/create - ADF_FACES-30107:The view state of the page has expired. Reload the page.
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._restoreView(LifecycleImpl.java:751)