@Override
    public void putTaskConfigs(String connName, List<Map<String, String>> configs, Callback<Void> callback, InternalRequestSignature requestSignature) {
        throw new UnsupportedOperationException("Kafka Connect in standalone mode does not support externally setting task configurations.");
    }
Single process, in-memory "herder". Useful for a standalone Kafka Connect process.
connect/runtime/src/main/java/org/apache/kafka/connect/runtime/standalone/StandaloneHerder.java