.enterprise.authentication.mechanism.http">HttpMessageContext</a></dt>
<dd>
<div class="block">Asks the container to register the given caller principal and groups in order to make
 them available to the application for use with <a href="javax/security/enterprise/SecurityContext.html#isCallerInRole-java.lang.String-"><code>SecurityContext.isCallerInRole(String)</code></a> etc.</div>
</dd>
<dt><span class="memberNameLink"><a href="javax/security/enterprise/authentication/mechanism/http/HttpMessageContext.htm