| Name | Description | Type | Package | Framework |
| EventHandler | Platform and technology independent event handler. | Class | javax.rad.util | JVX |
| ICallable | The ICallable will be used to call reflective any method. | Interface | javax.rad.util.event | JVX |
| IExceptionListener | The IExceptionListener will be used to handle program exceptions. | Interface | javax.rad.util.event | JVX |