@Override
    public void toData(DataOutput out,
        SerializationContext context) throws IOException {
      super.toData(out, context);
      DataSerializer.writeString(serviceName, out);
      out.writeInt(processorId);
      out.writeInt(grantorSerialNumber);
      out.writeLong(grantorVersion);
      DataSerializer.writeObject(elder, out);
    }
For unit testing we need to push the message through scheduleAction so that message observers
are invoked

@param dm the distribution manager
geode-core/src/main/java/org/apache/geode/distributed/internal/locks/DLockRecoverGrantorProcessor.java