// Current PubSubRequest has timed out so remove it from the
// ResponseHandler's map and invoke the VoidCallback's
// operationFailed method.
logger.error("Current PubSubRequest has timed out for pubSubData: " + pubSubData);
responseHandler.txn2PubSubData.remove(pubSubData.txnId);
pubSubData.callback.operationFailed(pubSubData.context, new UncertainStateException(
"Server ack response never received so PubSubRequest has timed out!"));
}
}