I hope this helps . Even though RESTEasy 3.X has been officially released about a year and a half ago, it is still fairly uncommon, at least in our experience. Swagger-core comes in several flavors, as a Play module, Servlet, and JAX-RS. When it comes to JAX-RS, there's a basic JAX-RS implementation for JAX-RS 1.X and then there are specific implementations for Jersey 1.X and Jersey 2.X.
Swagger Maven Plugin not generating parameters from @BeanParam annotatated parameters
By : user2841311
Date : March 29 2020, 07:55 AM
hope this fix your issue I ended up using this plugin instead, the documentation is a bit sparse but combing through the examples helps a lot. As an added bonus it generates openapi3 instead of swagger 2.