On 07/05/2011 17:31, Antoine Toulme wrote:
We really only care about jBPM, and as of now, we build it against M2. M2 was depending on mvel snapshot, so it started breaking when new snapshots were introduced.

I am not a big believer in snapshots for coordinating complex products like Drools with many moving pieces. I voiced this to Mark in the past, and I need to discuss this with you when we have time.
Mike did an API change to fix the MVEL performance issues and releases a snapshot for us to try. I then had to update Drools and jBPM to work against this new api. There was an issue with jBPM's pom that meant it wasn't seeing the latest MVEL snapshot and thus wouldn't compile. Kris is aware and fixing, if not fixed already.

Mark

Thanks,

Antoine

On Sat, May 7, 2011 at 08:42, Geoffrey De Smet <ge0ffrey.s...@gmail.com <mailto:ge0ffrey.s...@gmail.com>> wrote:

    Thanks Antoine :)
    It's a good experiment.

    Just hope it doesn't complicate things as the mvel snapshots
    change API regularly and our snapshots are adjusted regularly to
    cope with those API changes.

    Op 07-05-11 09:10, Antoine Toulme schreef:
    It is by no means going to help in any way for you to release.
    This is just meant for us to be able to build and run Drools
    while you guys figure out a solution.

    Thanks,

    Antoine

    On Fri, May 6, 2011 at 23:54, Geoffrey De Smet
    <ge0ffrey.s...@gmail.com <mailto:ge0ffrey.s...@gmail.com>> wrote:

        This nights mvel snapshot fixes jbpm (the one from 3-MAY
        doesn't afaik).
        Does that release (it's not a snapshot) include those latest
        changes?

        Not that I 've not been tempted (or pressured from Mark) to
        try to release mvel myself to move away from the snapshot,
        but without tag of the source code in git, without a "yes,
        this revision is ok" from Mike (the mvel lead), etc
        this isn't the kind of dependency we want to include in the
        final release and support for 5 to 7 years.

        Op 06-05-11 20:04, Antoine Toulme schreef:
        We pushed out this snapshot with a version for now:
        
http://www.intalio.org/public/maven2/org/mvel/mvel2/2.1/mvel2-2.1-intalio.jar



        On Fri, May 6, 2011 at 03:51, Geoffrey De Smet
        <ge0ffrey.s...@gmail.com <mailto:ge0ffrey.s...@gmail.com>>
        wrote:

            Hudson hasn't been reliable the last couple of days,
            this might have something do with it as you might not
            have the latest snapshots of everything.

            Furthermore, the mvel snapshot has been changed from
            1-MAY to 3-MAY
            
https://repository.jboss.org/nexus/index.html#nexus-search;gav~org.mvel~mvel2~2.1-SNAPSHOT~~
            
<https://repository.jboss.org/nexus/index.html#nexus-search;gav%7Eorg.mvel%7Emvel2%7E2.1-SNAPSHOT%7E%7E>
            But I don't think that's it.
            As soon as a new mvel release is out, I 'll switch us to
            it. We can't use the current latest mvel release.

            Op 06-05-11 12:20, Leonardo Gomes schreef:
            I will try to delete mvel stuff from my repository at
            home tonight to see if it fixes the problem. If not,
            here's a suggestion from Antoine:

                We suffered the same problem, the temporary
                workaround is to use an older snapshot:

                You can pick this one:
                
http://www.intalio.org/public/maven2/org/mvel/mvel2/2.1-SNAPSHOT/mvel2-2.1-20110328.204856-23.jar

                I hope it helps.

                Antoine


            Leo.

            On Fri, May 6, 2011 at 11:30 AM, Michael Anstis
            <michael.ans...@gmail.com
            <mailto:michael.ans...@gmail.com>> wrote:

                I pulled, rebased just now and it's OK here.

                I have deleted my mvel entries in maven recently
                though, I think Wolfgang and Leo have had issues
                with different versions in their local repos.

                With kind regards,

                Mike


                On 6 May 2011 08:50, Jervis Liu <j...@redhat.com
                <mailto:j...@redhat.com>> wrote:

                    Hi,

                    Looks like MVEL lib is screwed up on master.
                    Tried to run test scenario
                    Good Credit History Only, it failed with
                    following errors:

                    Unable to rebuild the rulebase.
                    org.drools.rule.MVELDialectRuntimeData; local
                    class incompatible: stream
                    classdesc serialVersionUID =
                    8808844570772337501, local class
                    serialVersionUID = 2609855281272796208

                    Jervis

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