| Destroyable | Allows for special treatment of sensitive information, when it comes to destroying or clearing of the data. |
| AuthPermission | Legacy security code; do not use. |
| PrivateCredentialPermission | Legacy security code; do not use. |
| Subject | The central class of the javax.security.auth package representing an
authenticated user or entity (both referred to as "subject"). |
| SubjectDomainCombiner | Legacy security code; do not use. |
| DestroyFailedException | Signals that the destroy() method failed. |