问题 I am working on Kafka Streams using Spring Cloud Stream. In the message processing application, there may be a chance that it will produce an error. So the message should not be commited and retried again. My application method - @Bean public Function<KStream<Object, String>, KStream<String, Long>> process() { return (input) -> { KStream<Object, String> kt = input.flatMapValues(v -> Arrays.asList(v.toUpperCase().split("\\W+"))); KGroupedStream<String, String> kgt =kt.map((k, v) -> new