.executionListener(ExecutionListener.EVENTNAME_END, verifier)
.endActivity()
.buildProcessDefinition();
PvmProcessInstance processInstance = processDefinition.createProcessInstance();
processInstance.start();
verifier.assertNonCompletingActivityInstance("start", 1);
verifier.assertNonCompletingActivityInstance("fork", 2);
verifier.assertIsCompletingActivityInstance("end1", 1);
verifier.assertIsCompletingActivityInstance("end2", 1);