title: Is there way to deserialise {"number1":5L,"number2":5L} to a class having long fields?
body: <p>When I deserialise <code>JSON</code>:</p>
  
  <pre><code>{"number1":5L,"number2":5L}
  </code></pre>
  
  <p>to a <code>class</code> having <code>long</code> fields, I get below error:</p>
  
  <blockquote>
    <p>JsonParseException: Unexpected character ('L' ): was expecting comma
    to separate Object entries</p>
  </blockquote>
  
  <p>How to fix it?</p>