[trace] tracing pooled state machine

git-svn-id: http://umple.googlecode.com/svn/trunk@3823 6ebf9d09-8eb1-0036-9d08-68c07d1b990a
[trace] tracing pooled state machine

git-svn-id: http://umple.googlecode.com/svn/trunk@3824 6ebf9d09-8eb1-0036-9d08-68c07d1b990a