| Name | Description | Type | Package | Framework |
| AbortPolicy | S e e A l s o : T h r e a d P o o l E x e c u t o r . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| BatchablePipe | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| CallerRunsPolicy | S e e A l s o : T h r e a d P o o l E x e c u t o r . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| ClearThreadLocalThreadPoolHandler | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| CoalescedPipe | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| CompeteLatch | A s y n c h r o n i z e r b a s e d o n t h e J D K ' s A Q S f r a m e w o r k t o s i m u l a t e a s i n g l e w i n n e r c o m p e t i t i o n . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| ConcurrentHashSet | S e e A l s o : S e r i a l i z e d F o r m C o n s t r u c t o r S u m m a r y C o n c u r r e n t H a s h S e t ( ) | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| ConcurrentLFUCache | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| DiscardOldestPolicy | S e e A l s o : T h r e a d P o o l E x e c u t o r . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| DiscardPolicy | S e e A l s o : T h r e a d P o o l E x e c u t o r . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| DiscardWithCancelPolicy | H a n d l e s r e j e c t e d t a s k s b y c a n c e l i n g t h e m i m m e d i a t e l y . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| IncreasableEntry | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| LockRegistry | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| ReadWriteLockKey | R e p r e s e n t s a k e y t h a t i s u s e d b y R e a d W r i t e L o c k R e g i s t r y . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| ReadWriteLockRegistry | R e g i s t r y f o r R e a d W r i t e L o c k o b j e c t s w i t h R e a d W r i t e L o c k K e y a s k e y s . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| RejectedExecutionHandler | P r o v i d e s t h e s a m e i n t e r f a c e a s T h r e a d P o o l E x e c u t o r . | Interface | com.liferay.portal.kernel.concurrent | Liferay Portal |
| TaskQueue | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| ThreadPoolExecutor | S e e h t t p : / / i s s u e s . | Class | com.liferay.portal.kernel.concurrent | Liferay Portal |
| ThreadPoolHandler | Interface | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| ThreadPoolHandlerAdapter | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |
| ThrowableAwareRunnable | Class | com.liferay.portal.kernel.concurrent | Liferay Portal | |