[ http://issues.apache.org/jira/browse/MYFACES-821?page=all ]
Stan Silvert closed MYFACES-821:
--------------------------------
Resolution: Won't Fix
This is a problem in LifeRay. The latest version has a fix.
> Usage of request attributes for caching
> ---------------------------------------
>
> Key: MYFACES-821
> URL: http://issues.apache.org/jira/browse/MYFACES-821
> Project: MyFaces Core
> Type: Bug
> Versions: 1.1.0
> Environment: liferay 3.6.1
> Reporter: Michael Lipp
> Assignee: Stan Silvert
>
> JspStateManagerImpl (and maybe other classes) uses request attributes for
> caching state. This causes a wrong view to be used if there is more than one
> JSF-based portlet on a single page. MyFaces saves the serialized view of the
> first portlet on the page as a request attribute. To avoid re-serialization,
> MyFaces subsequently checks if there already is a request attribute with a
> serialized view. As request attributes are not scoped to a single portlet
> (the portlet specification does not require this), the serialized view of the
> first portlet will be found and used by the second portlet.
> This usage of request attributes may also be the cause of MYFACES-549.
> As JSF, of course, does not need to know about the portlet environment, it
> cannot be required that MyFaces saves such information "per view", e.g. by
> prepending the viewId to the key for the request attribute (although this
> would solve the problem). IMHO any request attributes added during
> lifecycle.render() should be removed after lifecycle() render by the portlet
> bridge. (The same applies to request attributes added during
> lifecycle.execute(), but these should also be re-added before
> lifecycle.render().) I have implemented this in my portlet bridge as a
> workaround.
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