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From "Matt Benson (JIRA)" <...@myfaces.apache.org>
Subject [jira] [Created] (MYFACES-3119) NullPointerException in UIComponentBase.restoreDeltaSystemEventListenerClassMap() when UIViewRoot subscribed to PostAddToViewEvent
Date Thu, 28 Apr 2011 18:38:03 GMT
NullPointerException in UIComponentBase.restoreDeltaSystemEventListenerClassMap() when UIViewRoot
subscribed to PostAddToViewEvent
----------------------------------------------------------------------------------------------------------------------------------

                 Key: MYFACES-3119
                 URL: https://issues.apache.org/jira/browse/MYFACES-3119
             Project: MyFaces Core
          Issue Type: Bug
          Components: General
    Affects Versions: 2.0.5
            Reporter: Matt Benson


As reported in MYFACES-2466 (whose summary I copied here), I am encountering the NPE on the
access of {{holderList}} in what is currently line 1917 of {{UIComponentBase}} whenever I
use a {{ComponentSystemEventListener}} on {{UIViewRoot}}.  Specifically I am subscribing to
{{PreRenderViewEvent}} and the problem occurs restoring the view regardless of whether I unsubscribe
the listener e.g. after {{RENDER_RESPONSE}}.

More information:
{{_systemEventListenerClassMap}} is {{null}} when the method is called, thus the map is reinstantiated
so of course the value looked up and assigned to {{holderList}} is {{null}}.

Now I have to go use Mojarra until this is fixed.  :(

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