16 |
|
* expired furthest in the past - if no delay has expired there is no head and |
17 |
|
* <tt>poll</tt> will return <tt>null</tt>. |
18 |
|
* This queue does not permit <tt>null</tt> elements. |
19 |
+ |
* <p>This class implements all of the <em>optional</em> methods |
20 |
+ |
* of the {@link Collection} and {@link Iterator} interfaces. |
21 |
|
* @since 1.5 |
22 |
|
* @author Doug Lea |
23 |
|
*/ |
249 |
|
/** |
250 |
|
* Returns an iterator over the elements in this queue. The iterator |
251 |
|
* does not return the elements in any particular order. The |
252 |
< |
* returned iterator is a "fast-fail" iterator that will |
252 |
> |
* returned iterator is a thread-safe "fast-fail" iterator that will |
253 |
|
* throw {@link java.util.ConcurrentModificationException} |
254 |
|
* upon detected interference. |
255 |
|
* |