title: Create JsonArray without key value
body: <p>Please help me create jSonArray without keys. It should looks like:</p>
  
  <pre><code>"main" : ["one", "two", "three"]
  </code></pre>
  
  <p>I have tried it with empty key value:</p>
  
  <pre><code>private String generate(String value) {
  
      Gson gson = new Gson();
      JsonArray jsonArray = new JsonArray();
      JsonObject jsonObject = new JsonObject();
  
      jsonObject.addProperty("", value);
      jsonArray.add(jsonObject);
  
      return gson.toJson(jsonArray);
  }
  </code></pre>
  
  <p>Result looks bad..</p>
  
  <pre><code>"main": "[
    {\"\":\
    "myString value\"}
  ]"
  </code></pre>