The ShutdownTaskList object provides a consistent way to schedule tasks that need to be run on shutdown. This is a better solution that running shutdown tasks in a plugin's shutdown method because the tasks are:
- Ran in a safe environment so all tasks are guaranteed to run even in the face of exceptions being raised.
- Provides a single ProgressDialog for all tests to update rather than either opening a seperate dialog for each task or running silently in the background.
The ShutdownTaskList is a singleton and can be obtained using the ShutdownTaskList.get() method. Tasks can be ran just before shutdown or after the workbench has been shutdown. Currently only the Pre-shutdown tasks have a Progress Dialog associated with them because all UI components are disposed of once the workbench has been shutdown.
