@NonNullByDefault

Package java.util.concurrent

Interface Summary

Interface	Description
Callable<V>	A task that returns a result and may throw an exception.
Delayed	A mix-in style interface for marking objects that should be acted upon after a given delay.
Executor	An object that executes submitted Runnable tasks.
ExecutorService	An Executor that provides methods to manage termination and methods that can produce a Future for tracking progress of one or more asynchronous tasks.
Future<V>	A Future represents the result of an asynchronous computation.
RunnableFuture<V>	A Future that is Runnable.
ScheduledExecutorService	An ExecutorService that can schedule commands to run after a given delay, or to execute periodically.
ScheduledFuture<V>	A delayed result-bearing action that can be cancelled.
ThreadFactory	An object that creates new threads on demand.

Enum Summary

Enum	Description
TimeUnit	A TimeUnit represents time durations at a given unit of granularity and provides utility methods to convert across units, and to perform timing and delay operations in these units.

Exception Summary

Exception	Description
CancellationException	Exception indicating that the result of a value-producing task, cannot be retrieved because the task was cancelled.
ExecutionException	Exception thrown when attempting to retrieve the result of a task that aborted by throwing an exception.
RejectedExecutionException	Exception thrown by an Executor when a task cannot be accepted for execution.
TimeoutException	Exception thrown when a blocking operation times out.