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https://issues.apache.org/jira/browse/MYFACES-3524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13253032#comment-13253032
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Leonardo Uribe commented on MYFACES-3524:
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Probably there is an error in render response phase. The response was already
started and cannot be reset, so the default error handler cannot reset the
response and render the error page.
You should attach a debugger into your tomcat to see what's wrong. I don't
think the solution is in MyFaces in this case.
> MyFaces returns a blank page whenever there's some error. Nothing on the log,
> either.
> -------------------------------------------------------------------------------------
>
> Key: MYFACES-3524
> URL: https://issues.apache.org/jira/browse/MYFACES-3524
> Project: MyFaces Core
> Issue Type: Improvement
> Affects Versions: 2.1.6
> Environment: JDK 1.6.0_31
> Tomcat 7.0.26
> tomahawk20-1.1.11
> Reporter: Haroldo de Oliveira Pinheiro
>
> We were migrating from MyFaces 1.1.8 to MyFaces 2.1.6, when we ran into a
> really crippling problem:
> Whenever an uncaught error happens, MyFaces 2.1.6 just returns a blank page,
> and doesn't show anything on the log, either. Naturally, this error makes it
> almost impossible to even find out what error is ocurring.
> Couldn't the error at least be shown in the log?
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