Is it possible to assign conditional tasks with Fork node in JBPM. As per my requirement, workflow should allow optional Parallel tasks and a mandatory sequential task. But I'm getting some issues while conditionally assign tasks with fork. Process definition: | <?xml version="1.0" encoding="UTF-8"?> | <process name="conditional_task" version="1" xmlns="http://jbpm.org/4.0/jpdl"> | <start g="27,32,80,40"> | <transition to="Validate Approval Seqence"/> | </start> | <!-- Checks which sequence to initiate ie., Either Parallel or Sequential --> | <decision expr="#{isOptionalTasksExists}" name="Validate Approval Seqence" g="257,31,80,40"> | <transition name="true" to="Assign Parallel Tasks" g="-24,2"/> | <transition name="false" to="Sequential Task" g="564,54:-75,-21"/> | </decision> | <!-- Parallel Task Assignment --> | <fork name="Assign Parallel Tasks" g="258,139,80,40"> | <transition to="validateFirstParallelTask"/> | <transition to="validateSecondParallelTask"/> | </fork> | <!-- Conditional Task Assignment --> | <decision name="validateFirstParallelTask" g="135,221,80,40"> | <transition to="First Parallel Task"> | <condition expr="#{firstParallelApprover != null}"/> | </transition> | </decision> | <task assignee="#{firstParallelApprover}" name="First Parallel Task" g="71,325,169,40"> | <transition name="Approve" to="wait for other tasks" g="-45,-18"/> | </task> | <decision name="validateSecondParallelTask" g="384,221,80,40"> | <transition to="Second Parallel Task"> | <condition expr="#{secondParallelApprover != null}"/> | </transition> | </decision> | <task assignee="#{secondParallelApprover}" name="Second Parallel Task" g="308,324,204,40"> | <transition name="Approve" to="wait for other tasks" g="-45,-18"/> | </task> | <join name="wait for other tasks" g="270,436,80,40"> | <transition to="Sequential Task"/> | </join> | <!-- Sequential Task --> | <task assignee="#{sequentialApprover}" name="Sequential Task" g="494,437,147,40"> | <transition name="Approve" to="Finish" g="-45,-18"/> | </task> | <end name="Finish" state="Completed" g="778,431,80,40"/> | </process> This definition forces me to supply either (2 Parallel and 1 Sequential) or (0 Parallel and 1 Sequential) approvers, but not 1 Parallel and 1 Sequential. Thanks in Advance View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4262014#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...