VMexitHandler (Autonomous Unmanned Vehicle (AUV) Workbench Documentation)

```
public class VMexitHandler
extends Object
```
Autonomous Underwater Vehicle Workbench Naval Postgraduate School, Monterey, CA www.nps.edu By: Mike Bailey Date: Sep 3, 2004 Time: 1:02:43 PM A class to attempt to consolidate (somewhat) requests to kill an app. All existing calls to System.exit(int x) would be changed to VMexitHandler.instance().sysExit(x). In addition, any object may register itself as a listener, and be notified when the above call has been made. It will then have a chance to (hopefully) clean up any internal pending stuff. Also, a listener has a chance to abort the exit if it returns true. This latter is probably not too useful, since existing calls to System.exit() are most likely nested in an unrecoverable context, but it is here if a developer wants to try using it.

Nested Classes
Modifier and Type	Class and Description
`static interface`	`VMexitHandler.Listener` The interface that listeners to this class must implement

Methods
Modifier and Type	Method and Description
`void`	`addListener(VMexitHandler.Listener lis)` Register a callback to be notified when someone has called System.exit()
`ActionListener`	`getSysExitHandler()` Convenience method to return an ActionListener which does one thing: call sysExit() in the prescribed way.
`static VMexitHandler`	`instance()`

Class VMexitHandler