private void replyWithNull(ClusterDistributionManager dm) {
      ResponseMessage.sendMessage(key, getSender(), processorId, null, 0, false, false,
          false, dm, null);
    }
This method execute's on the receiver's node, and checks to see if the requested object
exists in shared memory on this node, and if so, sends back a ResponseMessage.
geode-core/src/main/java/org/apache/geode/internal/cache/SearchLoadAndWriteProcessor.java