Hi Sandeep, There's an open source implementation of the WS-BPEL standard named Twister. You can find more about it here:
http://www.smartcomps.org/twister We're currently merging Twister with the Apache Incubator project Agila (source is being moved to Agila's repository, documentation will follow) so if you want more information I'd advise subscribing to [EMAIL PROTECTED] and checking current Twister site. Twister-becoming-Agila-BPEL is not a BPELJ implementation though but AFAIK BPELJ is just a proposal made by BEA and IBM and not a standard (it's actually kind of breaking the WS-BPEL standard). I'd advise sticking with BPEL as BPELJ has very little added value. Cheers, Matthieu Riou.