| 231 |
|
* }}</pre> |
| 232 |
|
* |
| 233 |
|
* In this example, as well as others in which tasks have no other |
| 234 |
< |
* effects except to compareAndSet a common result, the trailing |
| 235 |
< |
* unconditional invocation of {@code tryComplete} could be made |
| 236 |
< |
* conditional ({@code if (result.get() == null) tryComplete();}) |
| 234 |
> |
* effects except to {@code compareAndSet} a common result, the |
| 235 |
> |
* trailing unconditional invocation of {@code tryComplete} could be |
| 236 |
> |
* made conditional ({@code if (result.get() == null) tryComplete();}) |
| 237 |
|
* because no further bookkeeping is required to manage completions |
| 238 |
|
* once the root task completes. |
| 239 |
|
* |
| 610 |
|
|
| 611 |
|
/** |
| 612 |
|
* If this task's pending count is zero, returns this task; |
| 613 |
< |
* otherwise decrements its pending count and returns {@code |
| 614 |
< |
* null}. This method is designed to be used with {@link |
| 615 |
< |
* #nextComplete} in completion traversal loops. |
| 613 |
> |
* otherwise decrements its pending count and returns {@code null}. |
| 614 |
> |
* This method is designed to be used with {@link #nextComplete} in |
| 615 |
> |
* completion traversal loops. |
| 616 |
|
* |
| 617 |
|
* @return this task, if pending count was zero, else {@code null} |
| 618 |
|
*/ |
