Workflow engines that worked with JaWE?

> + JaWE is a fully featured graphical Java workflow process editor 
> compliant
> to WfMC specifications. You may use JaWE to create/view and edit 
> standard
> compliant XPDL files. Current release is JaWE 1.0. More on
> http://jawe.enhydra.org
>
> Many thanks to Together Teamlosungen for this new contributions.

This is great. Could it be possible to compile a list of workflow 
engines that compliant with the XPDL standards, preferably open source 
engines?

Thanks.

David Li