[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2152) Exception thrown from method expression causing re-evaluation as value expression

[Pete Muir (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-2152?page=comments#action_12389637 ] 
            
Pete Muir commented on JBSEAM-2152:
-----------------------------------

To summarize, Tom says this can't be supported in jBPM 3, but will be 4. I will write a workaround that takes a best guess at which exception to throw and logs any possible exceptions.

> Exception thrown from method expression causing re-evaluation as value expression
> ---------------------------------------------------------------------------------
>
>                 Key: JBSEAM-2152
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2152
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: BPM, EL
>    Affects Versions: 2.0.0.CR2
>            Reporter: Matthew Lieder
>         Assigned To: Pete Muir
>             Fix For: 2.0.1.GA
>
>
> To reproduce:
> In a Seam component called "bean":
> public void method() {
>     throw new RuntimeException("my error");
> }
> In a jPDL pageflow, inside a transition element:
> <action expression="#{bean.method}" />
> When the action is executed, an exception about "method" not being a property of the "bean" class is thrown (the real exception is never shown). See the forum thread for analysis of the underlying cause.

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