PageFlow stack gets corrupted when a request to nested pageflow ends prematurely
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Key: BEEHIVE-1217
URL: https://issues.apache.org/jira/browse/BEEHIVE-1217
Project: Beehive
Issue Type: Bug
Reporter: Poornachandran
Scenario:
1. Please compile the attached pageflows (unzip these files into the pageflow
enabled webapp and compile).
2. Run Controller.java pageflow and invoke "Go to Nested" action. "Go to
Nested" on NestedPageFlowController simulates delay (using loop) and it takes
sometime to complete the action.
3. In the meantime, invoke "Done" action, this action belongs to the outer
pageflow and displays a jsp page.
Now, the PageFlowStack has the outer pageflow instance pushed, but the flow has
actually come out of the nested pageflow. By repeating this process, page flow
stack gets lot of invalid pageflow instances and after sometime,
NullPointerException is thrown.
By adding a validation code in FlowControllerFactory before creating the
pageflow instance and before pushing the pageflow instance to the pageflow
stack, I am able to overcome this issue. Please update, if this is correct
approach.
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