title: Query for java client
body: <p>I am trying to construct this json using <code>QueryBuilders</code> but the "query" key is missing from the json, can anybody help me ?</p>
  
  <pre><code>{
      "query": {
          "bool": {
              "disable_coord": false,
              "adjust_pure_negative": true,
              "boost": 1.0
          }
      }
  }
  </code></pre>