Nested Page Flows

Question

Hi,
          I am getting ActionNotFoundException when browsing through my pages which use the Nested Page Flows.
          The complete description of the Nested Page Flow we are using in our Application .
          CustomerController --> Parent Controller
          ServiceAddressController --> Child Controller
          OrganizationHierarchyController --> Child Controller
          The CustomerController.saveCustomerContacts() action invokes the ServiceAddressController.begin().
          ServiceAddressController performs some actions and returns the Control back to the CustomerController.serviceAddressDone().
          CustomerController.serviceAddressDone() inturn again immediately invokes the OrganizationHierarchyController.begin().
          After performing some actions the OrganizationHierarchyController returns the control back to CustomerController.organizationHierarchyDone().
          The logs indicate that the Exception is occuring after returning from the OrganizationHierarchyController.begin().
          This is happening in the Integration environment.
          And one more thing…
          We have found from the Bea Web site
          (link: http://edocs.bea.com/workshop/docs81/doc/en/core/index.html ) that the following Exception occurs in the development environment..
          com.bea.wlw.netui.pageflow
          EmptyNestingStackException Class
          public class EmptyNestingStackException
          extends PageFlowException
          Exception that occurs when the user invokes an action in a nested page flow that is qualified with a @jpf:forward return-action="action-name-in-calling-pageflow " annotation, but there is no calling page flow. This can happen in iterative development mode when you have modified files and caused the web application to be redeployed, or when the session expires.
          Hierarchy
          Object
          Throwable
          Exception
          RuntimeException
          PageFlowException
          EmptyNestingStackException
          All Implemented Interfaces
          Serializable
          We initially thought that the above Exception might be the cause for ActionNotFoundException.
          Since the Weblogic Server removes the Controller from the nesting stack, and hence the Controller is lost and there by resulting in ActionNotFoundException.
          And we thought that this happens only in the iterative development Environment.
          But, we are getting this Exception even in the Integration Environment.
          This is causing problems for us to test the Application, and resolve the defects, and considerably hindering the progress of our development and the testing phase.
          We would appreciate any one who could find a quick solution for the above problem.
          We are Using Weblogic 8.1.3 with ServicePack 3.
          thanks,
          Venkatesh Pagadala.
          :-)

Answer 1

Did you get to the bottom of this ?
          The exception can be generated when you try to access /invoke an action on a pageflow that is no longer in the stack.
          Once you use the return-to and go back to a parent page flow then then nested page flow is destroyed.