IllegalStateException in org.springdoc.core.SpringDocConfiguration$OpenApiResourceAdvice.handleNoHandlerFound

[speralta]

Describe the bug
OpenApiResourceNotFoundException handler fails with IllegalStateException

[19303290-1373] There was an unexpected error (type=Internal Server Error, status=500).
Could not resolve parameter [1] in public org.springframework.http.ResponseEntity<org.springdoc.api.ErrorMessage> org.springdoc.core.SpringDocConfiguration$OpenApiResourceAdvice.handleNoHandlerFound(org.springdoc.api.OpenApiResourceNotFoundException,org.springframework.web.context.request.WebRequest): No suitable resolver
java.lang.IllegalStateException: Could not resolve parameter [1] in public org.springframework.http.ResponseEntity<org.springdoc.api.ErrorMessage> org.springdoc.core.SpringDocConfiguration$OpenApiResourceAdvice.handleNoHandlerFound(org.springdoc.api.OpenApiResourceNotFoundException,org.springframework.web.context.request.WebRequest): No suitable resolver
	at org.springframework.web.reactive.result.method.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:197)
	Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
	|_ checkpoint ⇢ HTTP GET "/v3/api-docs/test" [ExceptionHandlingWebHandler]

To Reproduce
Steps to reproduce the behavior:
On spring boot 2 Web flux with Open API 3 demo for example :
http://158.101.164.60:8082/v3/api-docs/test

• What version of spring-boot you are using?
  2
• What modules and versions of springdoc-openapi are you using?
  1.5.3
• What is the actual and the expected result using OpenAPI Description (yml or json)?
  N/A
• Provide with a sample code (HelloController) or Test that reproduces the problem
  I use springdoc demo site to reproduce

Expected behavior

• A clear and concise description of what you expected to happen.
  A correct error handling
• What is the expected result using OpenAPI Description (yml or json)?
  N/A

[bnasslahsen]

@speralta,

Can you add the source code of your sample to reproduce this issue. (this is the most important part)?

[speralta]

I used your hosted sample.

[bnasslahsen]

Not sure which sample you are refering to.
They are all deployed without any issue!
I am closing this, and if you have any enhancements to propose, try to be much more explicit.

[speralta]

The link i used is on the README.md here : https://github.com/springdoc/springdoc-openapi/blob/master/README.md
"Demo Spring Boot 2 WebFlux with OpenAPI 3."

I know the demo works well. The problem is when you try to access a not existing group : http://158.101.164.60:8082/v3/api-docs/test

[bnasslahsen]

Much clearer, with your last line description!