quarkus-reprod-38123

This is a reproduction-project for quarkusio/quarkus#38123

Steps to reproduce the issue

1. Run ExampleTest
2. Error 500 is thrown (although it shouldn't)
3. Change switch from the reactive REST-Client to the non-reactive one:

       <!-- switch those two -->
       <!-- this doesn't work -->
   <!--    <dependency>-->
   <!--      <groupId>io.quarkus</groupId>-->
   <!--      <artifactId>quarkus-rest-client-reactive-jackson</artifactId>-->
   <!--    </dependency>-->
       <!-- this works -->
       <dependency>
         <groupId>io.quarkus</groupId>
         <artifactId>quarkus-rest-client-jackson</artifactId>
       </dependency>
       <!-- -->

4. Run the test again
5. No error is thrown (as it should be)