src/test/resources/draft7/urn/issue665.json

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [
    "myData"
  ],
  "properties": {
    "myData": {
      "$ref": "urn:data"
    }
  },
  "definitions": {
    "data": {
      "$id": "urn:data",
      "type": "object",
      "required": [
        "value"
      ],
      "properties": {
        "value": {
          "type": "string"
        }
      }
    }
  }
}