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## Hierarchy For Package java.util.concurrent

Package Hierarchies:
  All Packages

## Class Hierarchy

- java.lang.Object
  - java.util.AbstractCollection<E> (implements java.util.Collection<E>)
    - java.util.AbstractQueue<E> (implements java.util.Queue<E>)
      - java.util.concurrent.ArrayBlockingQueue<E> (implements java.util.concurrent.BlockingQueue<E>, java.io.Serializable)
      - java.util.concurrent.ConcurrentLinkedQueue<E> (implements java.util.Queue<E>, java.io.Serializable)
      - java.util.concurrent.DelayQueue<E> (implements java.util.concurrent.BlockingQueue<E>)
      - java.util.concurrent.LinkedBlockingDeque<E> (implements java.util.concurrent.BlockingDeque<E>, java.io.Serializable)
      - java.util.concurrent.LinkedBlockingQueue<E> (implements java.util.concurrent.BlockingQueue<E>, java.io.Serializable)
      - java.util.concurrent.PriorityBlockingQueue<E> (implements java.util.concurrent.BlockingQueue<E>, java.io.Serializable)
      - java.util.concurrent.SynchronousQueue<E> (implements java.util.concurrent.BlockingQueue<E>, java.io.Serializable)
    - java.util.AbstractSet<E> (implements java.util.Set<E>)
      - java.util.concurrent.ConcurrentSkipListSet<E> (implements java.lang.Cloneable, java.util.NavigableSet<E>, java.io.Serializable)
      - java.util.concurrent.CopyOnWriteArraySet<E> (implements java.io.Serializable)
  - java.util.concurrent.AbstractExecutorService (implements java.util.concurrent.ExecutorService)
    - java.util.concurrent.ThreadPoolExecutor
      - java.util.concurrent.ScheduledThreadPoolExecutor (implements java.util.concurrent.ScheduledExecutorService)
  - java.util.AbstractMap<K,V> (implements java.util.Map<K,V>)
    - java.util.concurrent.ConcurrentHashMap<K,V> (implements java.util.concurrent.ConcurrentMap<K,V>, java.io.Serializable)
    - java.util.concurrent.ConcurrentSkipListMap<K,V> (implements java.lang.Cloneable, java.util.concurrent.ConcurrentNavigableMap<K,V>, java.io.Serializable)
  - java.util.concurrent.CopyOnWriteArrayList<E> (implements java.lang.Cloneable, java.util.List<E>, java.util.RandomAccess, java.io.Serializable)
  - java.util.concurrent.CountDownLatch
  - java.util.concurrent.CyclicBarrier
  - java.util.concurrent.Exchanger<V>
  - java.util.concurrent.ExecutorCompletionService<V> (implements java.util.concurrent.CompletionService<V>)
  - java.util.concurrent.Executors
  - java.util.concurrent.FutureTask<V> (implements java.util.concurrent.RunnableFuture<V>)
  - java.util.concurrent.Semaphore (implements java.io.Serializable)
  - java.util.concurrent.ThreadPoolExecutor.AbortPolicy (implements java.util.concurrent.RejectedExecutionHandler)
  - java.util.concurrent.ThreadPoolExecutor.CallerRunsPolicy (implements java.util.concurrent.RejectedExecutionHandler)
  - java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy (implements java.util.concurrent.RejectedExecutionHandler)
  - java.util.concurrent.ThreadPoolExecutor.DiscardPolicy (implements java.util.concurrent.RejectedExecutionHandler)
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.util.concurrent.BrokenBarrierException
      - java.util.concurrent.ExecutionException
      - java.lang.RuntimeException
        - java.lang.IllegalStateException
          - java.util.concurrent.CancellationException
        - java.util.concurrent.RejectedExecutionException
      - java.util.concurrent.TimeoutException

## Interface Hierarchy

- java.util.concurrent.Callable<V>
- java.lang.Comparable<T>
  - java.util.concurrent.Delayed
    - java.util.concurrent.ScheduledFuture<V> (also extends java.util.concurrent.Future<V>)
      - java.util.concurrent.RunnableScheduledFuture<V> (also extends java.util.concurrent.RunnableFuture<V>)
- java.util.concurrent.CompletionService<V>
- java.util.concurrent.Executor
  - java.util.concurrent.ExecutorService
    - java.util.concurrent.ScheduledExecutorService
- java.util.concurrent.Future<V>
  - java.util.concurrent.RunnableFuture<V> (also extends java.lang.Runnable)
    - java.util.concurrent.RunnableScheduledFuture<V> (also extends java.util.concurrent.ScheduledFuture<V>)
  - java.util.concurrent.ScheduledFuture<V> (also extends java.util.concurrent.Delayed)
    - java.util.concurrent.RunnableScheduledFuture<V> (also extends java.util.concurrent.RunnableFuture<V>)
- java.lang.Iterable<T>
  - java.util.Collection<E>
    - java.util.Queue<E>
      - java.util.concurrent.BlockingQueue<E>
        - java.util.concurrent.BlockingDeque<E> (also extends java.util.Deque<E>)
      - java.util.Deque<E>
        - java.util.concurrent.BlockingDeque<E> (also extends java.util.concurrent.BlockingQueue<E>)
- java.util.Map<K,V>
  - java.util.concurrent.ConcurrentMap<K,V>
    - java.util.concurrent.ConcurrentNavigableMap<K,V> (also extends java.util.NavigableMap<K,V>)
  - java.util.SortedMap<K,V>
    - java.util.NavigableMap<K,V>
      - java.util.concurrent.ConcurrentNavigableMap<K,V> (also extends java.util.concurrent.ConcurrentMap<K,V>)
- java.util.concurrent.RejectedExecutionHandler
- java.lang.Runnable
  - java.util.concurrent.RunnableFuture<V> (also extends java.util.concurrent.Future<V>)
    - java.util.concurrent.RunnableScheduledFuture<V> (also extends java.util.concurrent.ScheduledFuture<V>)
- java.util.concurrent.ThreadFactory

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - java.util.concurrent.TimeUnit

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