It's been a rather frustrating experience. I don't have a very complicated process, but I'm basically trying to manage a conversation that is taking place in our messaging system. Each node in the process is either launching a form, or waiting for a message to be received by the process. Each step verifies the correct message was received or goes back to a waiting state. There is a lot of branching but this was easy enough to set up and test. My biggest problem has been in setting up group timers. This is a very important aspect to managing the conversation as a timeout is necessary to cancel the conversation so we don't leave processes running that will never finish. To the best of my knowledge these do not work in JBPM4.4. I have asked several questions on the forum but have not received any responses. Mule has had it's own set of challenges like transforms that do not throw errors when classes they need are not available. Much of my frustration is probably from my own lack of experience with JBPM. One thing that would really help is a better example for a group timer. I may have to get the source code and dive in to figure out what is going wrong with my timers. I don't want to discourage you from using the tool. I plan on getting through this setback and doing what I can to share what I learn so others have an easier go of things. I hope you will do the same.
Jim