on? If not specified, the default value of <code>true</code>
        will be used.</p>
      </td></tr><tr><td><strong><code class="attributeName">className</code></strong></td><td>
        <p>Java class name of the implementation to use.  This MUST be set to
        <strong>org.apache.catalina.authenticator.SpnegoAuthenticator</strong>.
        </p>
      </td></tr><tr><td><code class="attributeName">changeSessionIdOnAuthentication</code></td><td>
        <p>Controls if the session ID is changed if a sessi