Example of what? Have you looked at the documentation on github? If that is now enough there are plenty of tests in the source (100% coverage). If that still isn't enough, please let me know what a good example would be and I might write one.

I just released 0.8.0 of my state machine framework for java.
The major changes includes

• Improved thread safety
• Arguments are changed into a generic context
• Improved builders

If you need state handling in java, give it a go and let me know how I can improve it.

I would like to introduce Fettle, a simple yet powerful state machine framework written in java using generics.
http://thehiflyer.github.com/Fettle/

In Fettle it is easy to construct a state machine template using a builder and then have that template produce state machine instances. This keeps the memory footprint lower for cases when many entities need their own copy of a state machine.