if (compareAndSet(currentRunner, blocker)) {
        // Thread.interrupt can throw arbitrary exceptions due to the nio InterruptibleChannel API
        // This will make sure that tasks don't get stuck busy waiting.
        // Some of this is fixed in jdk11 (see https://bugs.openjdk.java.net/browse/JDK-8198692) but
        // not all.  See the test cases for examples on how this can happen.
        try {

    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      // if waiting works, this should get stuck
      Queues.drain(q, newArrayList(), 1, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {
      // we indeed waited; a slow thread had enough time to interrupt us
    }
  }

  }

  // This test covers a bug where an Error thrown from a callback could cause the TimeoutFuture to
  // never complete when timing out.  Notably, nothing would get logged since the Error would get
  // stuck in the ScheduledFuture inside of TimeoutFuture and nothing ever calls get on it.

  // Simulate a timeout that fires before the call the SES.schedule returns but the future is
  // already completed.

  }

  // This test covers a bug where an Error thrown from a callback could cause the TimeoutFuture to
  // never complete when timing out.  Notably, nothing would get logged since the Error would get
  // stuck in the ScheduledFuture inside of TimeoutFuture and nothing ever calls get on it.

  // Simulate a timeout that fires before the call the SES.schedule returns but the future is
  // already completed.

import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

public final class InterruptibleTaskTest extends TestCase {

  // Regression test for a deadlock where a task could be stuck busy waiting for the task to
  // transition to DONE
  public void testInterruptThrows() throws Exception {
    final CountDownLatch isInterruptibleRegistered = new CountDownLatch(1);
    InterruptibleTask<@Nullable Void> task =

import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

public final class InterruptibleTaskTest extends TestCase {

  // Regression test for a deadlock where a task could be stuck busy waiting for the task to
  // transition to DONE
  public void testInterruptThrows() throws Exception {
    final CountDownLatch isInterruptibleRegistered = new CountDownLatch(1);
    InterruptibleTask<@Nullable Void> task =

    Future<?> possiblyIgnoredError = threadPool.submit(new Interrupter(currentThread()));
    try {
      // if waiting works, this should get stuck
      Queues.drain(q, newArrayList(), 1, MAX_VALUE, NANOSECONDS);
      fail();
    } catch (InterruptedException expected) {
      // we indeed waited; a slow thread had enough time to interrupt us
    }
  }