src/java.base/share/classes/javax/security/auth/Refreshable.java

@@ -30,10 +30,11 @@
  * interface to provide the capability to refresh itself.
  * For example, a credential with a particular time-restricted lifespan
  * may implement this interface to allow callers to refresh the time period
  * for which it is valid.
  *
+ * @since 1.4
  * @see javax.security.auth.Subject
  */
 public interface Refreshable {
 
     /**