Swagger UI puts my every endpoint into a "default" group. Why?

[NadChel]

I want Swagger to group my endpoints by controllers, as it usually does

I tried this

package by.afinny.apigateway.constant;

import io.swagger.v3.oas.models.servers.Server;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.List;

@Component
@Setter
@ConfigurationProperties(value = "gateway")
public final class GatewayMeta {
    public List<Server> servers;
    public String v1Prefix;
    public List<Server> servers() {
        return servers;
    }
    public String v1Prefix() {
        return v1Prefix;
    }
}

package io.swagger.v3.oas.models.servers;

import io.swagger.v3.oas.models.annotations.OpenAPI31;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;

public class Server {
    private String url = null;
    private String description = null;
    private ServerVariables variables = null;
    private Map<String, Object> extensions = null;

    public Server() {
    }

// more code, getters and setters too

# notice the camel case
gateway:
  servers:
    - local-server:
        url: https://localhost:8080
        description: Api-Gateway-V2
  v1Prefix: /api/v1

I get an exception. It's relatively detailed, but I still don't understand what I need to do. Update how?

ERROR 19960 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Binding to target [Bindable@2a484710 type = java.util.List<io.swagger.v3.oas.models.servers.Server>, value = 'none', annotations = array<Annotation>[[empty]], bindMethod = [null]] failed:

    Property: gateway.servers[0].local-server.description
    Value: "Api-Gateway-V2"
    Origin: class path resource [application-prod.yml] - 53:22
    Reason: The elements [gateway.servers[0].local-server.description,gateway.servers[0].local-server.url] were left unbound.
    Property: gateway.servers[0].local-server.url
    Value: "https://localhost:${server.port}"
    Origin: class path resource [application-prod.yml] - 52:14
    Reason: The elements [gateway.servers[0].local-server.description,gateway.servers[0].local-server.url] were left unbound.

Action:

Update your application's configuration

I also included @EnableConfigurationProperties above my @SpringBootApplication class (I accidentally found it and decided to put it just in case)

I discovered it has to do with Server serialization: if I comment out everything related to servers, the prefix does get resolved. But why? Server does have getters and setters

Besides, I don't want my yaml to be forced to follow that camel case. I haven't found some equivalent of @JsonProperty for @ConfigurationProperties (like @ConfigurationProperty or something)

I don't want to introduce some manually created special tags for grouping

How do I achieve my goal?