Hi Daniel,
The patch looks good and all tests pass, so I've merged and pushed the changes into bpelunit/master. We should probably mention this new feature in CHANGES.markdown, though. Could you please add a quick mention there?
Our embedded copy of Velocity was producing OSGi use conflicts, so I had to repackage it as a plugin in eclipse-deps/org.apache.velocity, but I forgot to add its dependencies on Commons Collections and Commons Lang. It should work fine now from the runtime workbench as long as you import the projects in eclipse-deps. I've also fixed the copy of o.a.velocity in Neptuno's P2 repository that we use for our CI builds.
Best regards,
Antonio