.setStatus(Status.OK);
TransactionReduceWrapperCallback callback = mr_ts.getTransactionReduceWrapperCallback();
assert (callback != null) : "Unexpected null TransactionReduceWrapperCallback for " + mr_ts;
assert (callback.isInitialized()) : "Unexpected uninitalized TransactionReduceWrapperCallback for " + mr_ts;
callback.run(builder.build());
}
return (result);
}