Need help please - java.lang.IllegalStateException: Unknown object type

[Fu, Lieyong]

Title: Message

When trying to run a simple myface web application on Weblogic 8.1, The Web application was deployed OK and I got the home page. When I clicked on one of the menu item, I got the following exception. Any help is greatly appreciated.

 

BTW - My web application ran fine on Tomcat 5.0.28.

 

Thanks,

Lieyong  

 

java.lang.IllegalStateException: Unknown object type
        at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:1278)
        at javax.faces.component.UIOutput.restoreState(UIOutput.java:180)
        at javax.faces.component.html.HtmlOutputText.restoreState(HtmlOutputText.java:174)
        at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:999)
        at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1011)
        at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1025)
        at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1011)
        at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreComponentState(JspStateManagerImpl.java:165)
        at org.apache.myfaces.application.jsp.JspStateManagerImpl.restoreView(JspStateManagerImpl.java:221)
        at org.apache.myfaces.application.jsp.JspViewHandlerImpl.restoreView(JspViewHandlerImpl.java:301)
        at org.apache.myfaces.lifecycle.LifecycleImpl.restoreView(LifecycleImpl.java:129)
        at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:82)
        at javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
        at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1006)
        at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
        at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:112)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6724)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
        at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3764)
        at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2644)
        at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:219)
        at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:178)