I have the same problem, did you find a solution?
No environment description was provided. Please specify your JDK and app server versions.
I have the same problem and I don't know how to solve it.
eclipse ganymade with the jdk 1.5.07,
the JBOSS AS 4.2.2,
the jwsdp 1.6,
ant 1.7.1 and
jbpm bpel 1.1.1
Please help me.