ft">
      <p>Provides a default value for the <code>jvmRoute</code> attribute of the
      <a href="engine.html">Engine</a> element. It does not override the value
      configured on the <a href="engine.html">Engine</a> element.</p>
    </td></tr><tr><td valign="center" align="left"><code>org.apache.catalina.loader. WebappClassLoader.ENABLE_CLEAR_REFERENCES</code></td><td valign="center" align="left">
      <p>If <code>true</code>, Tomcat attempts to null out any static or final
      fields from loaded c