lass="colLast">
<div class="block">Returns the string value of the authentication scheme used to protect
 the resource.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/security/Principal.html?is-external=true" title="class or interface in java.security">Principal</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="../../../../javax/ws/rs/core/SecurityContext.html#getUserPrincipal--">g