[seam-issues] [JBoss JIRA] Commented: (JBSEAM-3355) SeamExpressionEvaluator gobbles up exceptions

Marek Novotny (JIRA) jira-events at lists.jboss.org
Thu Aug 18 16:24:18 EDT 2011

    [ https://issues.jboss.org/browse/JBSEAM-3355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12622020#comment-12622020 ] 

Marek Novotny commented on JBSEAM-3355:

I just tried to understand what you want, but I can't. The "serious bug" with not throwing original? Original exception is logged at DEBUG level, while it is in exceptions list. Or you couldn't see it at DEBUG logs?

> SeamExpressionEvaluator gobbles up exceptions 
> ----------------------------------------------
>                 Key: JBSEAM-3355
>                 URL: https://issues.jboss.org/browse/JBSEAM-3355
>             Project: Seam 2
>          Issue Type: Bug
>    Affects Versions: 2.1.0.BETA1
>            Reporter: Wolfgang Schwendt
>            Priority: Critical
>             Fix For: 2.3.0.ALPHA
> Rev 8710 of org.jboss.seam.bpm.SeamExpressionEvaluator  introduced a serious bug.    If the  invocation of the method expression (me.invoke(...)) throws an exception such as org.jboss.seam.security.AuthorizationException, the SeamExpressionEvaluator  afterwards tries to evaluate the EL expression as a value expression.  This of course results in a second exception thrown: PropertyNotFoundException.    Consequently, the list "exceptions" has size > 2 (rather than just size==1), which results in SeamExpressionEvaluator throwing an ELException that does not wrap the exception which originally caused the method expression invocation to fail.
> The bug was introduced because, compared with earlier versions, the try/catch-blocks for the method expression and value expression evaluation were changed and are now wrong.   This is serious because it breaks the handling of any application exception thrown while evaluating the EL method expression, such as AuthorizationException.

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