SpringBoot io.swagger.v3.oas.annotations.parameters.RequestBody get always BODY as NULL

Describe the bug

Example:

  /auth/ssoid:
    post:
      tags:
      - Authentifizierung
      summary: Anmeldung eines Users über SSOID
      operationId: findBySsoid
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: string
      responses:
        '201':
          description: User Objekt
          content:
            'application/json':
              schema:
                $ref: '#/components/schemas/User'

getting generated with openapi-generator:

    @Operation(summary = "Anmeldung eines Users über SSOID", tags={ "Authentifizierung", }, responses = {  @ApiResponse(responseCode = "201", description = "User Objekt", content = @Content(mediaType = "application/json", schema = @Schema(implementation =  UserDto.class))) },security = {
        @SecurityRequirement(name = "ApiKeyAuth"),@SecurityRequirement(name = "BasicAuth"),@SecurityRequirement(name = "CookieAuth") } )
        @RequestMapping(
        method = RequestMethod.POST,
        value = "/auth/ssoid",
        produces = { "application/json" },
        consumes = { "application/json" }
    )
    default ResponseEntity<UserDto> findBySsoid(

@Parameter(name = "", required = true )   @Valid @RequestBody String body) {
        return getDelegate().findBySsoid(body); -> always "null"
    }

import io.swagger.v3.oas.annotations.parameters.RequestBody -> doesn't work.

To Reproduce - Spring-Boot: 1.6.2 - Spring-Doc-Open-Api: 1.6.2

Additional context - if I change from io.swagger.v3.oas.annotations.parameters.RequestBody to org.springframework.web.bind.annotation.RequestBody its work..

Comment From: wilkinsona

Spring MVC doesn't know anything about io.swagger.v3.oas.annotations.parameters.RequestBody. It you want String body to contain the request's body, then, from Spring's perspective at least, you will have to annotate it with org.springframework.web.bind.annotation.RequestBody. Perhaps Springdoc adds something that means that you should be able to use Swagger's @RequestBody in place of Spring Web's? If so and it is not working as expected, you should raise that with the Springdoc team.