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https://issues.apache.org/jira/browse/KAFKA-8326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16834053#comment-16834053
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Daniyar Yeralin commented on KAFKA-8326:
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TODO: once implementation is finalized and approved proceed with writing test
cases for List Serde
> Add List<T> Serde
> -----------------
>
> Key: KAFKA-8326
> URL: https://issues.apache.org/jira/browse/KAFKA-8326
> Project: Kafka
> Issue Type: Improvement
> Components: clients, streams
> Reporter: Daniyar Yeralin
> Priority: Minor
>
> I propose adding serializers and deserializers for the java.util.List class.
> I have many use cases where I want to set the key of a Kafka message to be a
> UUID. Currently, I need to turn UUIDs into strings or byte arrays and use
> their associated Serdes, but it would be more convenient to serialize and
> deserialize UUIDs directly.
> I believe there are many use cases where one would want to have a List serde.
> Ex.
> [https://stackoverflow.com/questions/41427174/aggregate-java-objects-in-a-list-with-kafka-streams-dsl-windows],
>
> [https://stackoverflow.com/questions/46365884/issue-with-arraylist-serde-in-kafka-streams-api]
>
> KIP Link:
> [https://cwiki.apache.org/confluence/display/KAFKA/KIP-466%3A+Add+support+for+List%3CT%3E+serialization+and+deserialization]
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