@Override
        public UnoptimizableRepartitionNode<K, V> build() {
            return new UnoptimizableRepartitionNode<>(nodeName,
                                                      sourceName,
                                                      processorParameters,
                                                      keySerde,
                                                      valueSerde,
                                                      sinkName,
                                                      repartitionTopic,
                                                      partitioner,
                                                      internalTopicProperties);
        }
Repartition node that is not subject of optimization algorithm
streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/UnoptimizableRepartitionNode.java