I've tried without luck also a simplified scenario with all possible conditon syntax | <decision name="CheckState"> | <transition name="tr2" to="node2"> | <condition>status=='DO NOT GO HERE'</condition> | </transition> | <transition name="tr3" to="node3"> | <condition>status=='UNDEF'</condition> | </transition> | <transition name="tr0" to="node0"> | <condition>status eq 'UNDEF'</condition> | </transition> | <transition name="tr1" to="node1"> | <condition>#{status == 'UNDEF'}</condition> | </transition> | <transition name="tr4" to="node4"> | <condition>#{contextInstance.variables['status'] == 'UNDEF'}</condition> | </transition> | <transition name="tr5" to="node5"> | <condition>#{contextInstance.variable.status == 'UNDEF'}</condition> | </transition> | <transition name="tr6" to="node6"> | <condition>#{contextInstance.variable.status eq 'UNDEF'}</condition> | </transition> | <transition name="tr7" to="node7"> | <condition>status -ùà-è+òl0'''00ì' 'UNDEF'</condition> | </transition> | | </decision> | having set a status var to UNDEF The jbpm log says 2007-06-26 09:59:08,649 DEBUG [] update variable 'status' in 'TokenVariableMap159640d' to value 'UNDEF' 2007-06-26 09:59:08,667 DEBUG [] event 'before-signal' on 'State(RequestedState)' for 'Token(/)' 2007-06-26 09:59:08,710 DEBUG [] event 'node-leave' on 'State(RequestedState)' for 'Token(/)' 2007-06-26 09:59:08,710 DEBUG [] event 'transition' on 'Transition()' for 'Token(/)' 2007-06-26 09:59:08,732 DEBUG [] event 'node-enter' on 'Decision(CheckState)' for 'Token(/)' 2007-06-26 09:59:08,813 DEBUG [] decision didn't select transition, taking default Transition(tr2) 2007-06-26 09:59:08,813 DEBUG [] decision CheckState is taking 'Transition(tr2)' So it seems that my variable status is set to undef But i always get transition 2 Is there a way to debug the condition code that decide to get the default transition? thanks in advance View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4057584#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...