@Override
  protected void process(ClusterDistributionManager dm) {
    Assert.assertTrue(id != null);
    ReplyMessage reply = new ReplyMessage();
    reply.setProcessorId(processorId);
    reply.setRecipient(getSender());
    dm.putOutgoing(reply);
  }
Adds the distribution manager that is started up to the current DM's list of members.

This method is invoked on the receiver side
geode-core/src/main/java/org/apache/geode/distributed/internal/SerialAckedMessage.java