guava/src/com/google/common/util/concurrent/AbstractFuture.java
@CanIgnoreReturnValue
  @Override
  public V get() throws InterruptedException, ExecutionException {
    if (Thread.interrupted()) {
      throw new InterruptedException();
    }
    Object localValue = value;
    if (localValue != null & !(localValue instanceof SetFuture)) {
      return getDoneValue(localValue);
    }
    Waiter oldHead = waiters;
    if (oldHead != Waiter.TOMBSTONE) {
      Waiter node = new Waiter();
      do {
        node.setNext(oldHead);
        if (ATOMIC_HELPER.casWaiters(this, oldHead, node)) {
          // we are on the stack, now wait for completion.
          while (true) {
            LockSupport.park(this);
            // Check interruption first, if we woke up due to interruption we need to honor that.
            if (Thread.interrupted()) {
              removeWaiter(node);
              throw new InterruptedException();
            }
            // Otherwise re-read and check doneness. If we loop then it must have been a spurious
            // wakeup
            localValue = value;
            if (localValue != null & !(localValue instanceof SetFuture)) {
              return getDoneValue(localValue);
            }
          }
        }
        oldHead = waiters; // re-read and loop.
      } while (oldHead != Waiter.TOMBSTONE);
    }
    // re-read value, if we get here then we must have observed a TOMBSTONE while trying to add a
    // waiter.
    return getDoneValue(value);
  }
@CanIgnoreReturnValue
  @Override
  public V get() throws InterruptedException, ExecutionException {
    if (Thread.interrupted()) {
      throw new InterruptedException();
    }
    Object localValue = value;
    if (localValue != null & !(localValue instanceof SetFuture)) {
      return getDoneValue(localValue);
    }
    Waiter oldHead = waiters;
    if (oldHead != Waiter.TOMBSTONE) {
      Waiter node = new Waiter();
      do {
        node.setNext(oldHead);
        if (ATOMIC_HELPER.casWaiters(this, oldHead, node)) {
          // we are on the stack, now wait for completion.
          while (true) {
            LockSupport.park(this);
            // Check interruption first, if we woke up due to interruption we need to honor that.
            if (Thread.interrupted()) {
              removeWaiter(node);
              throw new InterruptedException();
            }
            // Otherwise re-read and check doneness. If we loop then it must have been a spurious
            // wakeup
            localValue = value;
            if (localValue != null & !(localValue instanceof SetFuture)) {
              return getDoneValue(localValue);
            }
          }
        }
        oldHead = waiters; // re-read and loop.
      } while (oldHead != Waiter.TOMBSTONE);
    }
    // re-read value, if we get here then we must have observed a TOMBSTONE while trying to add a
    // waiter.
    return getDoneValue(value);
  }
{@inheritDoc}

<p>The default {@link AbstractFuture} implementation throws {@code InterruptedException} if the
current thread is interrupted during the call, even if the value is already available.

@throws CancellationException {@inheritDoc}