Migration from swagger codegen 3.0.21 to 3.0.23 fails due to compilation errors

[SlavchoArsovski]

Hi Swagger Codegen team,

I tried to migrate from 3.0.21 to 3.0.23 because of included feature of OAS3 annotations in Spring Java.
During the migration i found 2 issues:

1. Generating SwaggerDocumentationConfig.java fails to compile because in SwaggerDocumentationConfig.mustache there is 2 imports with same class name from two different packages:
   import io.swagger.v3.oas.models.info.Contact;
   import springfox.documentation.service.Contact;

2. Having default value on query parameter generates following code:
   schema:
   name: 'offset'
   in: "query"
   description: 'Position of first item returned'
   required: false
   schema:
   type: integer
   format: int32
   example: 100
   default: 0

@parameter(in = ParameterIn.QUERY, description = "Position of first item returned" ,schema=@Schema(, defaultValue="0")) @Valid @RequestParam(value = "offset", required = false, defaultValue="0") Integer offset
---> schema=@Schema(, defaultValue="0")) has obsolete comma "," which makes the file with compile error

Best,
Slavcho

[reta]

@HugoMario that's on me, fix has been submitted (#796)