Fix support for Spring boot 3.x

[ghilainm]

Is your feature request related to a problem? Please describe.
Support for the moment is limited to Spring Boot 2.x

Describe the solution you'd like
The agent should support Spring Boot 3.x

Describe alternatives you've considered
Use another APM.

Additional context

2022-12-08 09:49:37.205 WARN 385599 --- [or-tcp-epoll-13] transaction.id=5b0c1281268dd31d, trace.id=a074b71f72622f22bb82fe8ccae7e6da reactor.core.Exceptions : throwIfFatal detected a jvm fatal exception, which is thrown and logged below:

java.lang.NoSuchMethodError: 'org.springframework.http.HttpStatus org.springframework.http.server.reactive.ServerHttpResponse.getStatusCode()'
at co.elastic.apm.agent.springwebflux.WebfluxHelper.fillResponse(WebfluxHelper.java:272)
at co.elastic.apm.agent.springwebflux.WebfluxHelper.endTransaction(WebfluxHelper.java:171)
at co.elastic.apm.agent.springwebflux.TransactionAwareSubscriber.onComplete(TransactionAwareSubscriber.java:177)

[JonasKunz]

Hi @ghilainm ,

Could you list your exact dependencies (e.g. via mvn dependency:tree)?
According to the javadocs the method org.springframework.http.HttpStatus org.springframework.http.server.reactive.ServerHttpResponse.getStatusCode() is supposed to still exist in spring 6. For this reason I assume that there must be some problems on your application classpath.

[ghilainm]

@JonasKunz Thx for having a look!

The problem arises when I migrated to Spring Boot 3.X.

Please find my dependencies attached :). I have added a screen shot of my project and the latest pull of apm java agent. The problem is the return type of the method.

runtime-dependencies.txt

[JonasKunz]

Ah I see, I missed that HttpStatus was changed to HttpStatusCode. Thanks for reporting this, we'll look into it!

[eyalkoren]

As far as I can see, fixing this status-code API compatibility may be sufficient to restore functionality.
Please try this snapshot and see if it improves things.
If not, please set log_level=debug and share the log, for example as gist.

[erescobar]

Hi! Any news here? Do you know when this will become available?

[eyalkoren]

@erescobar @ghilainm please try this snapshot and report back how this works for you. I hope the WebFlux issue is fixed with this.
If you use Spring MVC, that is not expected to work with Spring 6 still though. That will be the next step.

Please share how it looks like with the new snapshot and any errors you see.
Also, if you can share a full debug log through gist, one that starts with the startup of the application and continues until there are some traces being captured, that may be very helpful to make more progress.

[eyalkoren]

@erescobar @ghilainm any feedback on the provided snapshot would be extremely useful and can speed up our fix release. Thanks 🙏

[ghilainm]

I am currently having a look