string field is parsed as number

[Alexandros Sotiralis]

Using com.atlassian.oai:swagger-request-validator-wiremock:2.9.0

Swagger definition for parameter mobile is

swagger: '2.0'
info:
  description: Search for a mobile
consumes:
  - application/x-www-form-urlencoded
produces:
  - application/x-www-form-urlencoded
paths:
  /v4:
    post:
      summary: Search for a mobile
      consumes:
        - application/x-www-form-urlencoded
      parameters:
        - name: mobile
          in: formData
          required: true
          type: string
          minLength: 0
          maxLength: 10
          x-example: 0123456789

The following request

POST /v4 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Content-Length: 17
Host: localhost:8080
Connection: close
Accept-Encoding: gzip, deflate

mobile=0123456789

raises the following validation error

com.atlassian.oai.validator.wiremock.OpenApiValidationListener$OpenApiValidationException: {
 "messages" : [ {
 "key" : "validation.request.body.schema.type",
 "level" : "ERROR",
 "message" : "[Path '/mobile'] Instance type (integer) does not match any allowed primitive type (allowed: [\"string\"])",
 "context" : {
 "requestPath" : "/v4",
 "apiRequestContentType" : "application/x-www-form-urlencoded",
 "location" : "REQUEST",
 "requestMethod" : "POST"
 }
 } ]
}

It seems that mobile parameter is interpreted as number because it contains only digits. If it contains letters as well, then no validation error is raised.