assert sequenceManager != null;
assert inMessage != null;
final String inboundSequenceId = inMessage.getSequenceId();
if (inboundSequenceId == null) {
throw new WsrmRequiredException();
}
final Sequence inboundSequence = sequenceManager.getInboundSequence(inboundSequenceId);
// register and possibly store message in the unacked message sequence queue
inboundSequence.registerMessage(inMessage, storeMessage);