import org.jspecify.annotations.NullMarked;

/**
 * A {@code TearDownStack} contains a stack of {@link TearDown} instances.
 *
 * <p>This class is thread-safe.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@NullMarked
public class TearDownStack implements TearDownAccepter {
  private static final Logger logger = Logger.getLogger(TearDownStack.class.getName());

import org.jspecify.annotations.NullMarked;

/**
 * A {@code TearDownStack} contains a stack of {@link TearDown} instances.
 *
 * <p>This class is thread-safe.
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@NullMarked
public class TearDownStack implements TearDownAccepter {
  private static final Logger logger = Logger.getLogger(TearDownStack.class.getName());

      tearDown();
    }
  }

  @Override
  protected void tearDown() {
    tearDownStack.runTearDown();
  }

  /** Builds a {@link TearDownStack} that makes sure it's clear by the end of this test. */
  private TearDownStack buildTearDownStack() {
    TearDownStack result = new TearDownStack();
    tearDownStack.addTearDown(
        () -> {
          synchronized (result.lock) {
            assertEquals(

  private Future<Boolean> delayedFuture;

  private final TearDownStack tearDownStack = new TearDownStack();

  @Override
  protected void setUp() {
    ExecutorService executor = newSingleThreadExecutor();
    tearDownStack.addTearDown(executor::shutdownNow);
    sleeper = new SleepingRunnable(1000);
    delayedFuture = executor.submit(sleeper, true);

    tearDownStack.addTearDown(() -> Thread.interrupted());
  }

  @Override

      tearDown();
    }
  }

  @Override
  protected void tearDown() {
    tearDownStack.runTearDown();
  }

  /** Builds a {@link TearDownStack} that makes sure it's clear by the end of this test. */
  private TearDownStack buildTearDownStack() {
    TearDownStack result = new TearDownStack();
    tearDownStack.addTearDown(
        () -> {
          synchronized (result.lock) {
            assertEquals(

/**
 * Unit test for {@link TestLogHandler}.
 *
 * @author kevinb
 */
@NullUnmarked
public class TestLogHandlerTest extends TestCase {

  private TestLogHandler handler;
  private final TearDownStack stack = new TearDownStack();

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    handler = new TestLogHandler();

    // You could also apply it higher up the Logger hierarchy than this

  private Future<Boolean> delayedFuture;

  private final TearDownStack tearDownStack = new TearDownStack();

  @Override
  protected void setUp() {
    ExecutorService executor = newSingleThreadExecutor();
    tearDownStack.addTearDown(executor::shutdownNow);
    sleeper = new SleepingRunnable(1000);
    delayedFuture = executor.submit(sleeper, true);

    tearDownStack.addTearDown(() -> Thread.interrupted());
  }

  @Override

    }

    public void setSatisfied(boolean satisfied) {
      this.satisfied = satisfied;
    }
  }

  private final boolean interruptible;
  private Monitor monitor;
  private final TearDownStack tearDownStack = new TearDownStack();
  private TestThread<Monitor> thread1;
  private TestThread<Monitor> thread2;

  protected MonitorTestCase(boolean interruptible) {
    this.interruptible = interruptible;
  }

  @Override

/**
 * Unit test for {@link TestLogHandler}.
 *
 * @author kevinb
 */
@NullUnmarked
public class TestLogHandlerTest extends TestCase {

  private TestLogHandler handler;
  private final TearDownStack stack = new TearDownStack();

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    handler = new TestLogHandler();

    // You could also apply it higher up the Logger hierarchy than this

            logger.severe("InterruptenatorTask did not exit; future tests may be affected");
            /*
             * This fail() helps as long as TearDownAccepter is a TearDownStack that was *not*
             * configured with suppressThrows=true.
             */
            fail();
          }
        });
  }

  private InterruptionUtil() {}