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https://issues.apache.org/jira/browse/MYFACES-4125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096116#comment-16096116
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Dora Rajappan commented on MYFACES-4125:
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True in myfaces 2.2  drive request is not going to the error page and logs got 
in console given below.
java.lang.RuntimeException: after Render Response.
--------------------- Resonse commited = true.
Trying to resolve. Pluto3/,myfaces 2.2 StateWrite app is deployed and simulated 
this bug.
Pluto3 lib requires commons-beanutils-1.9.2, commons-collections-3.2.2, 
commons-digester-2.1,commons-logging-1.1.1 in its lib to deploy StateWriter 
with myfaces 2.2 jars.

> Response committed too early due to flush from StateWriter
> ----------------------------------------------------------
>
>                 Key: MYFACES-4125
>                 URL: https://issues.apache.org/jira/browse/MYFACES-4125
>             Project: MyFaces Core
>          Issue Type: Bug
>    Affects Versions: 2.2.12
>            Reporter: Eduardo Breijo
>         Attachments: server.log, StateWriter.war
>
>
> We've found a problem where it seems that MyFaces is flushing output too 
> early in the RENDER_RESPONSE PHASE. As a result the response is committed 
> before we have a chance to handle an error in that phase. 
> This is because the renderView method from FaceletViewDeclarationLanguage 
> calls writer.endDocument() which ends up calling the flush() method from 
> StateWriter. This commit behavior is different between 2.0 and 2.2.  It looks 
> like a flush() was empty on 2.0, and now a call was added, which causes the 
> issue we are seeing.
> Here's a sample app:
> 1) Drive a request: localhost:9080/StateWriter/index.xhtml
> 2) You should be able to see in the logs that response was committed, so 
> redirect to error.xhtml cannot be performed.



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