title: remove unused jars from project
body: <p><br>
  What is the easiest way (tool ?) to remove unused jars from my java (ant ) project. Our project has become really huge, and we want to do a clean up. There are several jars that are added to the classpath, but not all are used for compile/run. Is there a way to identify the unnecessary jars by running some utility from command line?<br>
  <b>Note</b>: we do not want to follow the tedious process of removing one or more jars, then compile/run to test if those are required or not.</p>