props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, JsonSerde.class.getName());
props.put(
JsonDeserializer.TYPE_MAPPINGS,
"user:" + Key.class.getName() + "," +
"ranking:" + Ranking.class.getName() + "," +
props.put(StreamsConfig.DEFAULT_VALUE_SERDE_CLASS_CONFIG, JsonSerde.class.getName());
props.put(
JsonDeserializer.TYPE_MAPPINGS,
"user:" + Key.class.getName() + "," +
"ranking:" + Ranking.class.getName() + "," +