MediaType property binding issue in native builds #30491
Description
Affects: 6.0.8
issue description:
When setting a org.springframework.http.MediaType via config properties (e.g. application/json) it works well when running in jvm, for example by ./gradlew bootRun. But when running natively, for example by ./gradlew nativeRun it fails on startup with a property binding issue: failed to convert java.lang.String to org.springframework.http.MediaType (caused by java.lang.IllegalArgumentException: Invalid token character '/' in token "application/json") (full error below).
It is possible to fix the native version by specifying the media type as application-json but this let's the jvm version fail on startup with a similar issue.
This makes it hard to develop and debug on jvm and deploy as native image, when you use some general default config for both.
reproduce:
I encountered this when working with Spring Data REST, when I was setting spring.data.rest.default-media-type, but it also can be reproduced by setting up your own config properties which accept a MediaType.
full error when starting native build with application/json (bootRun works fine)
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APPLICATION FAILED TO START
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Description: Failed to bind properties under 'spring.data.rest.default-media-type' to org.springframework.http.MediaType:
Property: spring.data.rest.default-media-type
Value: "application/json"
Origin: class path resource [application.yml] - 13:27
Reason: failed to convert java.lang.String to org.springframework.http.MediaType (caused by java.lang.IllegalArgumentException: Invalid token character '/' in token "application/json")
Action: Update your application's configuration
full error when starting jvm build with application-json (nativeRun works fine)
***************************
APPLICATION FAILED TO START
***************************
Description: Failed to bind properties under 'spring.data.rest.default-media-type' to org.springframework.http.MediaType:
Property: spring.data.rest.default-media-type
Value: "application-json"
Origin: class path resource [application.yml] - 13:27
Reason: failed to convert java.lang.String to org.springframework.http.MediaType (caused by org.springframework.util.InvalidMimeTypeException: Invalid mime type "application-json": does not contain '/')
Action: Update your application's configuration
possible workarounds:
- in general, having multiple configs for developing (jvm) and deployment/production (native)
- for this specific case with Spring Data REST, setting the media type programmatically via
config.setDefaultMediaType()
If you like I can prepare a repository with a minimal test case.
Thanks for your work