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https://issues.apache.org/jira/browse/BEEHIVE-1205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carlin Rogers resolved BEEHIVE-1205.
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Resolution: Fixed
Assignee: Julie Zhuo (was: Carlin Rogers)
Fixed with SVN revision 575538.
> project with a global.Global class that does not extend SharedFlowController
> or the derecated GlobalApp causes runtime exceptions
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: BEEHIVE-1205
> URL: https://issues.apache.org/jira/browse/BEEHIVE-1205
> Project: Beehive
> Issue Type: Bug
> Components: NetUI
> Affects Versions: 1.0, 1.0.1, 1.0.2
> Reporter: Carlin Rogers
> Assignee: Julie Zhuo
> Priority: Minor
> Fix For: V.Next
>
>
> To reproduce:
> - Add a simple POJO named Global.java in a /global package.
> - Build/compile the project. Note that the generated Struts module config
> files for the page flow controllers in the project (that do not have
> references to shared flows) will have a property defined by the
> <set-property property="sharedFlows" value="__global=global.Global"/>
> element with in the <controller>
> - Deploy the app on a server and hit a page flow controller begin action.
> Note the exception.
> java.lang.ClassCastException: global.Global
> at
> org.apache.beehive.netui.pageflow.FlowControllerFactory.createSharedFlow(FlowControllerFactory.java:426)
> at
> org.apache.beehive.netui.pageflow.FlowControllerFactory.createSharedFlow(FlowControllerFactory.java:406)
> at
> org.apache.beehive.netui.pageflow.FlowControllerFactory.addSharedFlow(FlowControllerFactory.java:815)
> at
> org.apache.beehive.netui.pageflow.FlowControllerFactory.getSharedFlowsForPath(FlowControllerFactory.java:498)
> at
> org.apache.beehive.netui.pageflow.FlowControllerFactory.getSharedFlowsForRequest(FlowControllerFactory.java:456)
> at
> org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.processInternal(PageFlowRequestProcessor.java:505)
> at
> org.apache.beehive.netui.pageflow.PageFlowRequestProcessor.process(PageFlowRequestProcessor.java:853)
> at
> org.apache.beehive.netui.pageflow.AutoRegisterActionServlet.process(AutoRegisterActionServlet.java:631)
> at
> org.apache.beehive.netui.pageflow.PageFlowActionServlet.process(PageFlowActionServlet.java:158)
> at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
> The global.Global class in this scenario is just a POJO and not a Shared
> Flow. When the application is compiled, the NetUI annotation processor (AP)
> assumes that it is a Shared Flow to support the old deprecated Global.app and
> generates a Struts module config file that includes a property for this class
> as a shared flow.
> The <controller> element in the generated Struts module config includes the
> following property...
> <set-property property="sharedFlows" value="__global=global.Global"/>
> The NetUI AP first looks for any shared flows referenced by a given page
> flow. If there are none, then it just looks to see if there is a
> global.Global type declaration, but does not check that it is an instance of
> org.apache.beehive.netui.pageflow.GlobalApp or a SharedFlowController. Since
> it finds the global.Global class in this scenario, it adds it as a default
> Shared Flow.
> Then at runtime when we try to load shared flows for the page flow, we fail
> with a ClassCastException.
> Note, this will only occur if a user defines a global.Global class in their
> NetUI project.
> The fix requires a change to
> org.apache.beehive.netui.compiler.FlowControllerInfo.setSharedFlowInfo() to
> check that the class inherits from GlobalApp or SharedFlowController.
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