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Refine kotlinx.serialization support

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This commit introduces the following changes:
 - Converters/codecs are now used based on generic type info.
 - On WebMvc and WebFlux, kotlinx.serialization is enabled along
   to Jackson because it only serializes Kotlin @Serializable classes
   which is not enough for error or actuator endpoints in Boot as
   described on spring-projects/spring-boot#24238.

TODO: leverage Kotlin/kotlinx.serialization#1164 when fixed.

Closes gh-26147
This commit is contained in:
Sébastien Deleuze
2020-11-26 12:15:23 +01:00
parent 1f701d9bad
commit 43faa439ab
13 changed files with 142 additions and 35 deletions
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spring-messaging/src/main/java/org/springframework/messaging/converter/KotlinSerializationJsonMessageConverter.java
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@@ -94,6 +94,7 @@ public class KotlinSerializationJsonMessageConverter extends AbstractJsonMessage
* Tries to find a serializer that can marshall or unmarshall instances of the given type
* using kotlinx.serialization. If no serializer can be found, an exception is thrown.
* <p>Resolved serializers are cached and cached results are returned on successive calls.
* TODO Avoid relying on throwing exception when https://github.com/Kotlin/kotlinx.serialization/pull/1164 is fixed
* @param type the type to find a serializer for
* @return a resolved serializer for the given type
* @throws RuntimeException if no serializer supporting the given type can be found