MessageNotReadableAdviceTrait not working for Spring v5.2.4.RELEASE

[bpicode]

Observed with Spring v5.2.4. Whenever a request body cannot be deserialized by failing with a JsonMappingException, the MessageNotReadableAdviceTrait does not get invoked.

Description

I noticed this in a kotlin project, where a MissingKotlinParameterException was thrown. This exception should, in general, map to a 400 Bad Request with a problem description.

Expected Behavior

A 400 Bad Request in the aforementioned case.

Actual Behavior

In my case, a 500 Server Error was returned (generic fallback).

Possible Fix

I noticed that MessageNotReadableAdviceTrait relies on a HttpMessageNotReadableException being thrown. With spring-projects/spring-framework@b889700 Spring throws a HttpMessageConversionException instead. One might fix this problem here by introducing another AdviceTrait handling such exceptions. Not sure however, if one should reach out to spring team instead.

Steps to Reproduce

Maybe later, limited on time :(

Context

See above.

Your Environment

• Version used: 0.25.2

[whiskeysierra]

Related to spring-projects/spring-framework#24610

[whiskeysierra]

Corresponding issue in Spring has been fixed.