Generated code shows list of controllers with -api-controller in swagger ui

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• What's the version of OpenAPI Generator used?
• Have you search for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Bounty to sponsor the fix (example)

Description

Swagger generated code shows list of controllers with -api-controller. The list has no functionality. The controllers have tags declared in yaml specification. It is possible not to show this list? I expect to see only the list of tags (not the controllers). The online swagger editor shows only the tags (not the list of controllers).

Related: https://stackoverflow.com/questions/50229661/how-to-remove-controller-list-from-swagger-ui

openapi-generator version

3.0.20

OpenAPI declaration file content or url

https://github.com/OAI/OpenAPI-Specification/blob/master/examples/v3.0/petstore.yaml

Command line used for generation

included with maven:

                    <configuration>
                        <!-- specify the swagger yaml -->
                        <inputSpec>${project.basedir}/src/main/resources/openapi.yml</inputSpec>
                        <!-- target to generate java client code -->
                        <language>spring</language>
                        <apiPackage>xxx.generated.server.api</apiPackage>
                        <modelPackage>xxx.generated.server.model</modelPackage>
                        <configOptions>
                            <delegatePattern>true</delegatePattern>
                        </configOptions>
                    </configuration>

Steps to reproduce

compile and run the generated code

Related issues/PRs

no

Suggest a fix

As in https://stackoverflow.com/questions/50229661/how-to-remove-controller-list-from-swagger-ui:

put @Api on the controller with relevant values fixes the issue.

Start with the generated Spring server configuration in the Maven example and reproduce the issue using the linked OpenAPI petstore.yaml, then run the generated code and inspect its Swagger UI. Done means the UI shows the declared tags without the nonfunctional controller list ending in -api-controller.