title: Jettison with json marshalling converting string data type to integer type, when value is numeric
body: <p>We are using jettison-1.3.3 for converting JaxB to Json.</p>
  
  <p>We are facing an issue.
  whenever I have a String property that contains all numbers (i.e. String phone="12345";), the JSON response will display it as a number (12345) without having the double quotes.</p>
  
  <p>If the value is coming as 1234AS in this case returns with double quote.
  How to fix this and making sure its always has double quotes.</p>
  
  <p>Please help</p>