v class="block">Returns groups for the caller, who is identified by the <a href="../CallerPrincipal.html" title="class in jakarta.security.enterprise"><code>CallerPrincipal</code></a>
 (and potentially other values) found in the <code>validationResult</code> parameter.
 <p>
 Callers (i.e., <a href="IdentityStoreHandler.html" title="interface in jakarta.security.enterprise.identitystore"><code>IdentityStoreHandler</code></a>s) should have
 <a href="IdentityStorePermission.html" title="class in jakarta.securi