| Task | Represents a task that may take a few iterations to complete. | code | html |
| TaskRunner | Allows you to request a thread execute the associated Task. | code | html |
| DedicatedTaskRunner | code | html | |
| DefaultThreadPools | code | html | |
| DeterministicTaskRunner | code | html | |
| PooledTaskRunner | code | html | |
| Scheduler | Singelton, references maintained by users | code | html |
| SchedulerTimerTask | A TimeTask for a Runnable object | code | html |
| TaskRunnerFactory | Manages the thread pool for long running tasks. | code | html |
| Valve | A Valve is a synchronization object used enable or disable the "flow" of concurrent processing. | code | html |