// send the integration message to the actor
targetNodeActor.tell(triggerMessage, null);
// send the meta data to the meta data actor (if it is not a start event, which can not collect meta data)
if (integrationMessage.getProcessInstanceId() != null) {
MetaDataMessage metaDataMessage = new MetaDataMessage(integrationMessage.getProcessId(), integrationMessage.getProcessInstanceId(), metaData);
LOG.debug("Message Dispatcher sending meta data message to " + this.metaDataActor);
metaDataActor.tell(metaDataMessage, null);
}