if (activityDefId.equals(WorkflowUtil.ACTIVITY_DEF_ID_RUN_PROCESS)) {
return admin.getProcessRequesterUsername(sessionHandle, processId);
} else {
WfActivityIterator iter = process.get_iterator_step();
for (int i = 0; i < iter.how_many(); i++) {
WfActivity activity = iter.get_next_object();
if (activity != null) {
WMEntity entity = admin.getActivityDefinitionInfo(sessionHandle, activity.container().key(), activity.key());