[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-3047) The version of the JVM impacts which version of mvel*.jar should be included.

[Earl Baugh (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-3047?page=comments#action_12414644 ] 
            
Earl Baugh commented on JBSEAM-3047:
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I have converted back to the distributed mvel jar, and when I can re-produce the exception I will post it.   I spent a few minutes attempt this AM trying to reproduce it, and was unsuccessful (it may have been that I've updated my Seam distribution twice since this error has occurred..).  The file which had the exception logged got rolled over (with the log4j config we have in development).    At the time this exception occurred, the results after a couple of hours of Googling, was that there were some issues with parsing that were somehow 1.4 vs 1.6 specific, and that the answer I discovered indicated that moving to the same version, but compiled on the same JVM as I deploy to, was the correct solution.     I will continue to see if I can find a copy of hte log, and also attempt to reproduce again and post a test case.

> The version of the JVM impacts which version of mvel*.jar should be included.
> -----------------------------------------------------------------------------
>
>                 Key: JBSEAM-3047
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-3047
>             Project: Seam
>          Issue Type: Task
>    Affects Versions: 2.0.2.GA
>         Environment: Seam and Java 1.4, 1.5 or 1.6
>            Reporter: Earl Baugh
>         Assigned To: Pete Muir
>            Priority: Minor
>             Fix For: 2.1.0.BETA1
>
>
> As described on the MVEL web site, MVEL has some "compiler specific" issues.   You can experience some odd behavior without the correct mvel*.jar that matches the JVM you are utilizing.  The set up scripts should take this into consideration and/or the Seam  package should include something to tell the developer that a different version may be required based on the JVM selected. 
> See : http://mvel.codehaus.org/Downloading+MVEL  for the different versions.
> They also state: "... if you are deploying to a specific environment, it is recommended you choose the build which matches your JRE version_"

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