@Override
    public String toString() {
        return "StreamTableJoinNode{" +
               "storeNames=" + Arrays.toString(storeNames) +
               ", processorParameters=" + processorParameters +
               ", otherJoinSideNodeName='" + otherJoinSideNodeName + '\'' +
               "} " + super.toString();
    }
Represents a join between a KStream and a KTable or GlobalKTable
streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/StreamTableJoinNode.java