ok, I've updated the jar as explained for than link and now I'm not getting any errors any more.

thanks  !

On Thu, Mar 31, 2011 at 6:52 PM, Brian Leathem <bleathem@gmail.com> wrote:
Many of the bugs you are reporting are due to bugs in the Glassfish/Weld 1.1.0 integration, and have been worked around in Weld trunk.  Until Weld 1.1.1 has been released, you need to update the Weld implementation in Glassfish to use a recent snapshot.  The good news, is that this is very painless to do.  Instructions are available at:

http://seamframework.org/Seam3/CompatibilityHome#H-UpgradingWeldInGlassFish31

Brian




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Sebastian E. Ovide