Below is the process definition of JBPM3 in this series, will continue to modify with the perfection of the example:
XML Version = "1.0" encoding = "GB2312"?>
start-start>
assignment> task > action> event> task-node > fork> start-variable> sub-process> process-state>
process-definition>
XML Version = "1.0" encoding = "GB2312"?>
start-state>
assignment> Task> action> event> task-node > process-definition>