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Brian Clozel
7077809561
Prior to this commit, Spring MVC and WebFlux would consider the "kotlinx.serialization" JSON codecs and converters in addition to other JSON alternatives like Jackson, Gson and Jsonb. This would cause issues because while in most cases this library is only involved if the type is annotated with "@Serializable", this is not true for Java enums. In this particular case, the codec shadows Jackson and causes issues. This commit now considers kotlinx.serialization JSON support as an alternative to Jackson. Just like Jsonb and GSON, this is only auto-detected if Jackson is not present. We received consistent feedback that kotlinx.serialization is popular in Kotlin libraries and is often a transitive dependency. As a result, we cannot consider its presence on the classpath as a strong enough signal to configure it by default. Closes gh-34410