How to use

Executors$FinalizableDelegatedExecutorService

in

edu.emory.mathcs.backport.java.util.concurrent

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue. (Note however that if this single
 * thread terminates due to a failure during execution prior to
 * shutdown, a new one will take its place if needed to execute
 * subsequent tasks.)  Tasks are guaranteed to execute
 * sequentially, and no more than one task will be active at any
 * given time. Unlike the otherwise equivalent
 * <tt>newFixedThreadPool(1)</tt> the returned executor is
 * guaranteed not to be reconfigurable to use additional threads.
 *
 * @return the newly created single-threaded Executor
 */
public static ExecutorService newSingleThreadExecutor() {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue()));
}

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue. (Note however that if this single
 * thread terminates due to a failure during execution prior to
 * shutdown, a new one will take its place if needed to execute
 * subsequent tasks.)  Tasks are guaranteed to execute
 * sequentially, and no more than one task will be active at any
 * given time. Unlike the otherwise equivalent
 * <tt>newFixedThreadPool(1)</tt> the returned executor is
 * guaranteed not to be reconfigurable to use additional threads.
 *
 * @return the newly created single-threaded Executor
 */
public static ExecutorService newSingleThreadExecutor() {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue()));
}

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue. (Note however that if this single
 * thread terminates due to a failure during execution prior to
 * shutdown, a new one will take its place if needed to execute
 * subsequent tasks.)  Tasks are guaranteed to execute
 * sequentially, and no more than one task will be active at any
 * given time. Unlike the otherwise equivalent
 * <tt>newFixedThreadPool(1)</tt> the returned executor is
 * guaranteed not to be reconfigurable to use additional threads.
 *
 * @return the newly created single-threaded Executor
 */
public static ExecutorService newSingleThreadExecutor() {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue()));
}

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue, and uses the provided ThreadFactory to
 * create a new thread when needed. Unlike the otherwise
 * equivalent <tt>newFixedThreadPool(1, threadFactory)</tt> the
 * returned executor is guaranteed not to be reconfigurable to use
 * additional threads.
 *
 * @param threadFactory the factory to use when creating new
 * threads
 *
 * @return the newly created single-threaded Executor
 * @throws NullPointerException if threadFactory is null
 */
public static ExecutorService newSingleThreadExecutor(ThreadFactory threadFactory) {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue(),
                threadFactory));
}

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue, and uses the provided ThreadFactory to
 * create a new thread when needed. Unlike the otherwise
 * equivalent <tt>newFixedThreadPool(1, threadFactory)</tt> the
 * returned executor is guaranteed not to be reconfigurable to use
 * additional threads.
 *
 * @param threadFactory the factory to use when creating new
 * threads
 *
 * @return the newly created single-threaded Executor
 * @throws NullPointerException if threadFactory is null
 */
public static ExecutorService newSingleThreadExecutor(ThreadFactory threadFactory) {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue(),
                threadFactory));
}

/**
 * Creates an Executor that uses a single worker thread operating
 * off an unbounded queue, and uses the provided ThreadFactory to
 * create a new thread when needed. Unlike the otherwise
 * equivalent <tt>newFixedThreadPool(1, threadFactory)</tt> the
 * returned executor is guaranteed not to be reconfigurable to use
 * additional threads.
 *
 * @param threadFactory the factory to use when creating new
 * threads
 *
 * @return the newly created single-threaded Executor
 * @throws NullPointerException if threadFactory is null
 */
public static ExecutorService newSingleThreadExecutor(ThreadFactory threadFactory) {
  return new FinalizableDelegatedExecutorService
    (new ThreadPoolExecutor(1, 1,
                0L, TimeUnit.MILLISECONDS,
                new LinkedBlockingQueue(),
                threadFactory));
}