[jaxrs-resteasy] generated code doesn't compile when @Produces contains multiple values

Created by: tnmtechnologies

Description

In case of multiple possible Content-Type values for a response, the values for the Produces annotation are not separated by a coma. It leads to a compilation error.

openapi-generator version

openapi-generator version is 3.0.3

OpenAPI declaration file content or url

   responses:
        '200':
          description: Expected response to a valid request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/LocationData'
        default:
          description: Unexpected error
          content:
            application/problem+json:
              schema:
                $ref: './TS29571_CommonData.yaml#/components/schemas/ProblemDetails'

Command line used for generation

java -jar ./openapi-generator-cli-3.0.3.jar generate -i TS29572_Nlmf_Location.yaml -g jaxrs-resteasy -o samples.openapi && (cd samples.openapi; mvn package)

Steps to reproduce

Compilation errors are:

[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[39,35] '}' expected
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[39,63] class, interface, or enum expected
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[45,12] class, interface, or enum expected
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[45,76] class, interface, or enum expected
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[45,105] class, interface, or enum expected
[ERROR] ...../samples.openapi/src/gen/java/org/openapitools/api/DetermineLocationApi.java:[48,5] class, interface, or enum expected
[INFO] 6 errors

Generated source code looks like:

@io.swagger.annotations.Api(description = "the determine-location API")
@javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaResteasyServerCodegen", date = "2018-07-03T11:18:06.912088700+02:00[Europe/Paris]")
public class DetermineLocationApi  {

    @Inject DetermineLocationApiService service;

    @POST
    
    @Consumes({ "application/json" })
    @Produces({ "application/json""application/problem+json" })
    @io.swagger.annotations.ApiOperation(value = "Determine Location of an UE", notes = "", response = LocationData.class, tags={ "Determine Location", })
    @io.swagger.annotations.ApiResponses(value = { 
        @io.swagger.annotations.ApiResponse(code = 200, message = "Expected response to a valid request", response = LocationData.class),
        
        @io.swagger.annotations.ApiResponse(code = 200, message = "Unexpected error", response = ProblemDetails.class) })
    public Response determineLocation(@ApiParam(value = "" ,required=true) InputData inputData,@Context SecurityContext securityContext)
    throws NotFoundException {
        return service.determineLocation(inputData,securityContext);
    }
}

Related issues/PRs

Suggest a fix/enhancement

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