[weld-issues] [JBoss JIRA] Closed: (WELD-531) Weld swallowing stacktrace in the case of multiple container errors

[Pete Muir (JIRA)]

     [ https://jira.jboss.org/browse/WELD-531?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pete Muir closed WELD-531.
--------------------------

         Assignee: Pete Muir
    Fix Version/s:     (was: 1.0.2.CR1)
       Resolution: Out of Date


actually, David has already done this :-) Try updating JBoss AS to use Weld trunk.

> Weld swallowing stacktrace in the case of multiple container errors
> -------------------------------------------------------------------
>
>                 Key: WELD-531
>                 URL: https://jira.jboss.org/browse/WELD-531
>             Project: Weld
>          Issue Type: Bug
>    Affects Versions: 1.0.1.Final
>            Reporter: Dan Allen
>            Assignee: Pete Muir
>            Priority: Blocker
>
> When there are multiple container errors (for instance, definition errors at startup), Weld cycles through the errors and builds a localized message. However, it drops the cause of the exception. If the message is further up the chain (i.e., in the exception cause), this leads to exceptions such as:
> Exception #0: null
> The user is lost as to what the real problem is. Typically root causes are:
> - NoClassDefFoundError
> - NullPointerException
> The problem is not that the message is null. The problem is that the underlying cause is dropped.
> This came up recently when using Arquillian as reported in this forum post: https://community.jboss.org/message/544395#544395
> When placed in a debugger, it turned out that a NoClassDefFoundError was being thrown. There was no way for the user to trace that to the source.
> I think that what Weld needs to do is follow the cause until it finds a non-null message.

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