title: GSON deserialize POJO with root value included
body: <p>I would like to achieve the opposite of this:
  <a href="https://stackoverflow.com/questions/4623329/gson-serialize-pojo-with-root-value-included">Gson serialize POJO with root value included?</a></p>
  
  <p>I get a JSON String</p>
  
  <pre><code>{"RootDTO":{"classField_01":"value"}}
  </code></pre>
  
  <p>and would like to deserialise that to</p>
  
  <pre><code>class RootDTO {
      String classField_01;
      //nice getter and setter are included
  }
  </code></pre>
  
  <p>I know how to set the parameter so that in serialisation the root element is included into the JSON string.
  But how to deserialise that now? Searching like hell already but wasn't able to find a suitable answer.</p>
  
  <p>Thank you for any ideas!</p>