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Matthias J. Sax updated KAFKA-7386: ----------------------------------- Affects Version/s: (was: 2.1.0) > Streams Scala wrapper should not cache serdes > --------------------------------------------- > > Key: KAFKA-7386 > URL: https://issues.apache.org/jira/browse/KAFKA-7386 > Project: Kafka > Issue Type: Bug > Components: streams > Affects Versions: 2.0.0 > Reporter: John Roesler > Assignee: John Roesler > Priority: Major > Fix For: 2.0.1, 2.1.0 > > > for example, > [https://github.com/apache/kafka/blob/trunk/streams/streams-scala/src/main/scala/org/apache/kafka/streams/scala/Serdes.scala#L28] > invokes Serdes.String() once and caches the result. > However, the implementation of the String serde has a non-empty configure > method that is variant in whether it's used as a key or value serde. So we > won't get correct execution if we create one serde and use it for both keys > and values. > The fix is simple: change all the `val` declarations in scala.Serdes to > `def`. Thanks to the referential transparency for parameterless methods in > scala, no user-facing code will break. -- This message was sent by Atlassian JIRA (v7.6.3#76005)