On Sat, Aug 15, 2009 at 2:57 AM, Jeanne
Waldman<jeanne.wald...@oracle.com> wrote:
> If I change Trinidad's demo faces-config.xml file to use a bogus
> default-render-kit-id, I get a NPE.
>
>     <!-- Use the Trinidad RenderKit -->
>     <default-render-kit-id>
>       org.apache.myfaces.trinidad.coreBAD
>     </default-render-kit-id>
>
> I get this:
>
> java.lang.NullPointerException
>     at
> com.sun.faces.renderkit.RenderKitUtils.getResponseStateManager(RenderKitUtils.java:246)
>     at
> com.sun.faces.lifecycle.RestoreViewPhase.isPostback(RestoreViewPhase.java:267)
>     at
> com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:172)
>     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
>     at
> com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:104)
>     Truncated. see log file for complete stacktrace
>>
>
> This seems to me to be a bug in
> com.sun.faces.renderkit.RenderKitUtils.getResponseStateManager:
>
> 3                   renderKit = factory.getRenderKit(context, renderKitId);
>   244               }
>   245           }
>   246           return renderKit.getResponseStateManager();
>
> Has anyone seen this or have an opinion about this? I would have liked to
> have had a log message telling me why I got a NPE at least so I didn't have
> to track it down.

Question: Is the myfaces jsf-impl better here?
I don't know as I haven't done something like the above.
Sure, on first thought the bug is kinda stupid, but heck - typos can happen :-)

So a better "warning" like a FAcesException ("there is no damn
'org.apache.myfaces.trinidad.coreBAD' renderkit")
would be way better.

-M

>
> I suppose I could write out a warning message in Trinidad's
> FacesContextFactoryImpl.java if it returns null.
>
> Thanks,
> Jeanne
>
>



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Matthias Wessendorf

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