Sounds like a really painful way of doing things. You have jbpm-gwt-console-server.war, jbpm-gwt-console, and jbpm-gwt-console.war. What are you changing? Maybe if you give more info we can guide you to the proper source code.
I'm trying to get hold of the details of the logged in user (just the username really), so I can assigned human tasks to them for the workflows that they start.