/**
 * Static utility methods pertaining to the {@link Runnable} interface.
 *
 * @since 16.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public final class Runnables {

  private static final Runnable EMPTY_RUNNABLE =
      new Runnable() {
        @Override
        public void run() {}
      };

  /** Returns a {@link Runnable} instance that does nothing when run. */

    @Override
    public void execute(Runnable runnable) {
      assertThat(runnable).isInstanceOf(TrustedListenableFutureTask.class);
      runnable.run();
    }

    @Override
    public void shutdown() {}

    @Override
    public List<Runnable> shutdownNow() {
      return ImmutableList.of();
    }

    @Override
    public boolean isShutdown() {
      return false;
    }

    @Override

                  + runnable
                  + " with executor "
                  + executor,
              e);
    }
  }

  private static final class RunnableExecutorPair {
    final Runnable runnable;
    final Executor executor;
    @CheckForNull RunnableExecutorPair next;

    RunnableExecutorPair(

  }

  public void testExceptionsCaught() {
    list.add(THROWING_RUNNABLE, directExecutor());
    list.execute();
    list.add(THROWING_RUNNABLE, directExecutor());
  }

  public void testNulls() {
    new NullPointerTester().testAllPublicInstanceMethods(new ExecutionList());
  }

  private static final Runnable THROWING_RUNNABLE =
      new Runnable() {
        @Override
        public void run() {

    @Override
    public void execute(Runnable runnable) {
      assertThat(runnable).isInstanceOf(TrustedListenableFutureTask.class);
      runnable.run();
    }

    @Override
    public void shutdown() {}

    @Override
    public List<Runnable> shutdownNow() {
      return ImmutableList.of();
    }

    @Override
    public boolean isShutdown() {
      return false;
    }

    @Override

  }

  public void testExceptionsCaught() {
    list.add(THROWING_RUNNABLE, directExecutor());
    list.execute();
    list.add(THROWING_RUNNABLE, directExecutor());
  }

  public void testNulls() {
    new NullPointerTester().testAllPublicInstanceMethods(new ExecutionList());
  }

  private static final Runnable THROWING_RUNNABLE =
      new Runnable() {
        @Override
        public void run() {

    }

    @Override
    public T call() throws Exception {
      return delegate.call();
    }
  }

  private static final class WrappedRunnable implements Runnable {
    private final Runnable delegate;

    public WrappedRunnable(Runnable delegate) {
      this.delegate = delegate;
    }

    @Override
    public void run() {
      delegate.run();
    }
  }

    }

    @Override
    public T call() throws Exception {
      return delegate.call();
    }
  }

  private static final class WrappedRunnable implements Runnable {
    private final Runnable delegate;

    public WrappedRunnable(Runnable delegate) {
      this.delegate = delegate;
    }

    @Override
    public void run() {
      delegate.run();
    }
  }

        Runnable command, long initialDelay, long delay, TimeUnit unit) {
      recordedCommand = command;
      recordedDelay = initialDelay;
      recordedInterval = delay;
      recordedTimeUnit = unit;
      return ImmediateScheduledFuture.of("scheduleWithFixedDelay");
    }

    @Override
    public void execute(Runnable runnable) {
      throw new UnsupportedOperationException();

        }
      };
  private static final Runnable GOOD_RUNNABLE =
      new Runnable() {
        @Override
        public void run() {
          try {
            MILLISECONDS.sleep(DELAY_MS);
          } catch (InterruptedException e) {
            throw new RuntimeException(e);
          }
        }
      };
  private static final Runnable BAD_RUNNABLE =
      new Runnable() {
        @Override