| Name | Description | Type | Package | Framework |
| AbortException | Thrown when a task is aborted. | Class | org.apache.pivot.util.concurrent | Apache Pivot |
| Task | Abstract base class for tasks. | Class | org.apache.pivot.util.concurrent | Apache Pivot |
| TaskExecutionException | Thrown when an error occurs during task execution. | Class | org.apache.pivot.util.concurrent | Apache Pivot |
| TaskGroup | Task that runs a group of tasks in parallel and notifies listeners when all tasks are complete. | Class | org.apache.pivot.util.concurrent | Apache Pivot |
| TaskListener | Task listener interface. | Interface | org.apache.pivot.util.concurrent | Apache Pivot |
| TaskSequence | Task that runs a sequence of tasks in series and notifies listeners when all tasks are complete. | Class | org.apache.pivot.util.concurrent | Apache Pivot |
| TimeoutException | Thrown when an executing task has timed out. | Class | org.apache.pivot.util.concurrent | Apache Pivot |