@Override
  public String toString() {
    return String.format(
        "StartupMessage DM %s has started. processor, %s. with distributed system id : %s",
        getSender(), replyProcessorId,
        distributedSystemId);
  }
Notes a problem that occurs while invoking
{@link DataSerializableFixedID#fromData(DataInput, DeserializationContext)}.
geode-core/src/main/java/org/apache/geode/distributed/internal/StartupMessage.java