Java alternative to Windows Workflow Foundation

Question

What Java alternatives are there to Windows Workflow Foundation? I am looking for something that provides at least the same features that WWF does, and has the same flexibility and relative ease of use. I would very much prefer a free solution.

Answer 1

There are several great workflow engines for Java JBPM is one.

Others can be found here.

Answer 2

We've used OSWorkflow and had success with it. In particular, it was easy to integrate with Spring and Quartz.

http://www.opensymphony.com/osworkflow/