[CAMEL-16904] Camel Swagger API response message headers of type string generate an empty enum even when allowableValues are not specified.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.11.1, 3.11.0
• Fix Version/s: 3.11.2, 3.12.0
• Component/s: camel-swagger-java
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Avinash Dongre
• Created: 31/Aug/21 08:58
• Updated: 01/Sep/21 09:29
• Resolved: 31/Aug/21 11:02

Description

Response message headers are configured like so 

rest().get("/test") 
.responseMessage().code(200).header("header1").description("test_header")
.endHeader().endResponseMessage() .to("log:log1?showBody=true");

 But there is an empty enum in the resulting API doc that generates an error if parsed on swagger's online editor.

{
  "swagger" : "2.0",
  "info" : {
    "version" : "1.0",
    "title" : "Test API"
  },
  "host" : "localhost:8080",
  "basePath" : "/rest",
  "schemes" : [ "http" ],
  "paths" : {
    "/test" : {
      "get" : {
        "operationId" : "verb1",
        "responses" : {
          "200" : {
            "description" : "success",
            "headers" : {
              "header1" : {
                "type" : "string",
                "description" : "test_header",
                "enum" : [ ]
              }
            }
          }
        }
      }
    }
  }
}

This doesn't happen with other data types.

Issue Links

• links to: GitHub Pull Request #6015