RestEasy Client default methods

[rvansa]

Describe the bug

When calling a default method on interface using @RegisterRestClient the default method is not invoked; instead I get an error saying

Could not find a method for: public default java.util.concurrent.CompletionStage io.foo.Bar.getFoo(java.lang.String)

Refactoring the code to use static methods on the interface works but is not that convenient.

Expected behavior

The default method (actually decorating the call to another interface's method) is invoked and it will call the actual method, executing the REST request.

Actual behavior

An error is thrown.

How to Reproduce?

@GET
@Path("foo")
CompletionStage<String> getFoo(@HeaderParam("Authorization") String authorization, @QueryParam("bar") String bar);

default CompletionStage<String> getFoo(String bar) {
  return getFoo("Bearer xyz", bar);
}

Output of uname -a or ver

No response

Output of java -version

openjdk version "11.0.9" 2020-10-20

GraalVM version (if different from Java)

No response

Quarkus version or git rev

2.1.0

Build tool (ie. output of mvnw --version or gradlew --version)

No response

Additional information

No response

[geoand]

FWIW, this works fine with the reactive rest client

[quarkus-bot]

/cc @michalszynkiewicz

[geoand]

I am going to close this as won't fix since we already have a working alternative with the reactive rest client