Taskflow context not maintained with ADF popups

Question

JDev build: JDEVADF_11.1.1.4.0_GENERIC_101212.1926.5912
A coworker also reproduced this using JDEVADF_11.1.1.4.0_GENERIC_101227.1736.5923
This is a simple WebCenter custom app created using JDev. I'm seeing exceptions when canceling a popup that contains a taskflow (the DocViewer taskflow). The popup was launched from another taskflow called Content Presenter. Upon canceling the popup (i.e., clicking the 'x' in the upper right corner), I see this error message in a javascript alert:
"Target Unreachable, 'presenterNavigationBean' returned null
ADF_FACES-60097:For more information, please see the server's error log for an entry beginning with: ADF_FACES-60096:Server Exception during PPR, #1"
In the server console, I see these exceptions (abbreviated to keep this post a bit smaller, but I can provide the entire stack trace if necessary):
java.lang.IllegalStateException: The expression "#{bindings.rbxzy5vg6jr1.regionModel}" (that was specified for the RegionModel "value" attribute of the region component with id "oc_4478173184region1") evaluated to null.
This is typically due to an error in the configuration of the objects referenced by this expression.
If it helps, the expression "#{bindings.rbxzy5vg6jr1}" evaluates to "null".
If it helps, the expression "#{bindings}" evaluates to "portal_cpPageDef". Now using an empty RegionModel instead.
     at oracle.adf.view.rich.component.fragment.UIXRegion.getRegionModel(UIXRegion.java:450)
     at oracle.adf.view.rich.component.fragment.UIXRegion._beginInterruptibleRegion(UIXRegion.java:682)
     at oracle.adf.view.rich.component.fragment.UIXRegion.processRegion(UIXRegion.java:498)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:692)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._restoreView(LifecycleImpl.java:632)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:300)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:185)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
<LifecycleImpl> <_handleException> ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase RESTORE_VIEW 1
javax.el.PropertyNotFoundException: Target Unreachable, 'presenterNavigationBean' returned null
     at com.sun.el.parser.AstValue.getTarget(Unknown Source)
     at com.sun.el.parser.AstValue.setValue(Unknown Source)
     at com.sun.el.ValueExpressionImpl.setValue(Unknown Source)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:656)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executeBindings(LifecycleImpl.java:727)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.access$000(LifecycleImpl.java:71)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$1.call(LifecycleImpl.java:697)
     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$1.call(LifecycleImpl.java:693)
     at oracle.adf.view.rich.component.fragment.UIXRegion.processRegion(UIXRegion.java:503)
(basically the same thing as above repeats a few times) presenterNavigationBean is the bean for the Content Presenter taskflow which launched the popup.
The steps I'm taking to see this problem are:
1. Launch JDev and create a WebCenter app, accepting all defaults. This requires the WebCenter extension, i.e., oracle.webcenter.framework_bundle.zip
2. Create a content repository connection to an Oracle Content Repository
3. Create a jspx in Web Content/oracle/webcenter/portalapp/pages using the global page template (select that checkbox). I typically call it cp.jspx, thus the references to "portal_cpPageDef" in the exceptions above.
4. Open the jspx in source view, place the cursor after the pageTemplate tag, and add a "page customizable" component from the Oracle Composer group in the Component Palette. Save the page.
5. Open Web Content/oracle/webcenter/portalapp/pagehierarchy/pages.xml and drag your jspx to the root of the hierarchy. Save all pages.
6. Run the Web Content/index.html page.
7. Login using weblogic/weblogic1
8. Click on the page you created in the toolbar
9. Click "shift + ctrl + E" to put the page in edit mode.
10. click the "Add Content" button (it launches a popup)
11. In the popup, click on "Content Management"
12. Click on "Add" next to the Content Presenter taskflow and close the popup
13. Now select an HTML document from the content repository by using the Content Presenter wizard (click on the first wrench icon in the chrome). If you don't have one, you'll have to add it to the repository.
14. In the Content Presenter wizard, select the "Preview" page
15. click the "Open in Document Viewer" button. This launches the DocViewer taskflow in an ADF popup.
16. Click the cancel button in the upper right corner.
17. This is when the javascript alert will show the errors mentioned above. The server console in JDev will show the stack traces.
Please let me know if this is a configuration issue on my end or a bug within ADF. I'll monitor this thread closely today to provide any information that could be helpful asap. Thank you.

Answer 1

It's the bean that the Content Presenter taskflow uses. All I did was create a page using the global page template and added the Page Customizable component to it, then customized the page to have an instance of the Content Presenter taskflow. I can use Content Presenter normally until I attempt to edit an HTML doc (which launches the DocViewer taskflow in an ADF popup). At that point I start seeing binding errors, like the taskflow context is lost.