RivenSun2 commented on code in PR #12010:
URL: https://github.com/apache/kafka/pull/12010#discussion_r854230524
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clients/src/main/java/org/apache/kafka/clients/producer/ProducerConfig.java:
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@@ -393,10 +394,14 @@ public class ProducerConfig extends AbstractConfig {
MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION_DOC)
.define(KEY_SERIALIZER_CLASS_CONFIG,
Type.CLASS,
+ ConfigDef.NO_DEFAULT_VALUE,
+ new ConfigDef.NonNullValidator(),
Review Comment:
Yes, there is indeed such a dilemma right now.
@guozhangwang Could we declare this in Notable changes. If not, we can only
remove the validator added to the (de)serializer configuration this time.
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