@Override
  protected AdminResponse createResponse(DistributionManager dm) {
    CancellationRegistry.getInstance().registerMessage(this);
    resp = ObjectDetailsResponse.create(dm, getSender());
    if (cancelled) {
      return null;
    }
    resp.buildDetails(getRegion(dm.getSystem()), objName, inspectionType);
    if (cancelled) {
      return null;
    }
    CancellationRegistry.getInstance().deregisterMessage(this);
    return resp;
  }
Must return a proper response to this request.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/ObjectDetailsRequest.java