 customized <code>Authenticator</code>
implementations.</p>

<p>If you are using the standard context configuration class
(<code>org.apache.catalina.startup.ContextConfig</code>) to configure the
Authenticator associated with a particular context, you can register the Java
class to be used for each possible authentication method by modifying the
following Properties file:</p>
<pre>
    src/share/org/apache/catalina/startup/Authenticators.properties
</pre>

<p>Each of the standard implementations extends a c