a> of groups found for the caller, if any, or an empty <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Set.html?is-external=true" title="class or interface in java.util" class="externalLink"><code>Set</code></a> otherwise.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/SecurityException.html?is-external=true" title="class or interface in java.lang" class="externalLink">SecurityEx