@Override
    public void fromData(DataInput in,
        DeserializationContext context) throws IOException, ClassNotFoundException {
      super.fromData(in, context);
      boolean hasPrimary = in.readBoolean();
      if (hasPrimary) {
        primary = new InternalDistributedMember();
        InternalDataSerializer.invokeFromData(primary, in);
      }
    }
Processes this message. This method is invoked by the receiver of the message.

@param dm the distribution manager that is processing the message.
geode-core/src/main/java/org/apache/geode/internal/cache/partitioned/CreateBucketMessage.java