Commons SCXML provides a generic state-machine based execution environment, using semantics from State Chart XML, which is currently a Working Draft out of the W3C. Most things that can be represented as a UML state chart -- business process flows, view navigation bits, interaction or dialog management, and many more -- can leverage the Commons SCXML library. The library can also be used by frameworks needing a process control language. The first release of Commons SCXML is in its planning stages.

More information can be found on the Commons SCXML website.

Find more about it here.

Find out more about Apache Jakarta Project.