Clarify Kotlin reified type parameter extensions documentation about type erasure [SPR-16273]

[spring-projects-issues]

Sébastien Deleuze opened SPR-16273 and commented

Since type erasure can be fixed only when using ParameterizedTypeReference based Java methods, RestOperations API documentation should be updated to specify which extensions are subject to type erasure, and which are not. Same for WebFlux client and server API.

Spring Boot TestRestTemplate extensions should be updated as well.

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Issue Links:

• Improve RestOperations Kotlin extensions [SPR-16274] #20821 Improve RestOperations Kotlin extensions ("is duplicated by")

Referenced from: commits deac8e5