<p>Java class name of the implementation to use.  This class must
      implement the <code>org.apache.catalina.Server</code> interface.
      If no class name is specified, the standard implementation will
      be used.</p>
    </td></tr><tr><td valign="center" align="left"><strong><code>port</code></strong></td><td valign="center" align="left">
      <p>The TCP/IP port number on which this server waits for a shutdown
      command.  This connection must be initiated from the same server
      computer th