.executionListener(ExecutionListener.EVENTNAME_START, verifier)
.executionListener(ExecutionListener.EVENTNAME_END, verifier)
.endActivity()
.buildProcessDefinition();
PvmProcessInstance processInstance = processDefinition.createProcessInstance();
processInstance.start();
PvmExecution childExecution = processInstance.findExecution("two");
String parentActivityInstanceId = ((ExecutionImpl)childExecution).getParentActivityInstanceId();
assertEquals(((ExecutionImpl)processInstance).getId(), parentActivityInstanceId);