title: How do I find what Java version Tomcat6 is using?
body: <p>Is there a OS command to find what Java version Tomcat6 is using?
  I need to use a Perl (including system()) command.</p>
  
  <p>I using Linux.  Ubuntu and CentOS</p>
  
  <p>Is there something like?</p>
  
  <pre><code>     tomcat6 version
  </code></pre>