<div class="block">Returns the low level Jakarta Authentication handler that the runtime provided when creating this 
 <a href="../../../../../../jakarta/security/enterprise/authentication/mechanism/http/HttpMessageContext.html" title="interface in jakarta.security.enterprise.authentication.mechanism.http"><code>HttpMessageContext</code></a>, and which this context uses to communicate the authentication details to the runtime.</div>
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<td class="colFirst"><code><a hre