title: How to inject compile classes in existing jar?
body: <p>I need to patch a system in production however I have already change the main trunck in CVS. Since there are a lot of changes I do not want to revert the code to a previous version as there is only one class involve. </p>
  
  <p>Could this be done ?</p>
  
  <ol>
  <li>Stop the application.</li>
  <li>Safely replace a edited *.class into an existing jar.</li>
  <li>Re-start the application.</li>
  </ol>
  
  <p>Many Thanks </p>