WeakReference<MyInt> signal = new WeakReference<>(canonical);
    canonical = null; // Hint to the JIT that canonical is unreachable

    GcFinalization.awaitClear(signal);
    assertThat(pool.intern(not)).isSameInstanceAs(not);
  }

  private static final class MyInt {
    private final int i;

    MyInt(int i) {
      this.i = i;
    }

    @Override

    "com.github.jnr:jnr-constants" to setOf(
        // For signal codes
        "jnr.constants.platform.Signal",
        "jnr.constants.platform.aix.Signal",
        "jnr.constants.platform.darwin.Signal",
        "jnr.constants.platform.freebsd.Signal",
        "jnr.constants.platform.openbsd.Signal",
        "jnr.constants.platform.linux.Signal",
        "jnr.constants.platform.solaris.Signal",
        "jnr.constants.Constant",

 * responses coming back in. Typically interceptors add, remove, or transform headers on the request
 * or response.
 *
 * Implementations of this interface throw [IOException] to signal connectivity failures. This
 * includes both natural exceptions such as unreachable servers, as well as synthetic exceptions
 * when responses are of an unexpected type or cannot be decoded.
 *

    WeakReference<MyInt> signal = new WeakReference<>(canonical);
    canonical = null; // Hint to the JIT that canonical is unreachable

    GcFinalization.awaitClear(signal);
    assertThat(pool.intern(not)).isSameInstanceAs(not);
  }

  private static final class MyInt {
    private final int i;

    MyInt(int i) {
      this.i = i;
    }

    @Override

        dataStore.alive = true;

        final int readerCount = 5;
        final int iterations = 1000;
        final Thread[] readers = new Thread[readerCount];
        final Exception[] exceptions = new Exception[readerCount + 1];
        final int[] trueCount = new int[readerCount];
        final int[] falseCount = new int[readerCount];

        // Start reader threads

    }
  }

  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
  protected final void setUp() throws Exception {

    }
  }

  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
  protected final void setUp() throws Exception {

   * A-with-acute-accent, {@code Á} and {@code á}.
   */
  private static final String IGNORED = "`10-=~!@#$%^&*()_+[]\\{}|;':\",./<>?'\u00c1\u00e1\n";

  private static final String LOWER = "abcdefghijklmnopqrstuvwxyz";
  private static final String UPPER = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

  public void testToLowerCase() {
    assertThat(Ascii.toLowerCase(UPPER)).isEqualTo(LOWER);

   * A-with-acute-accent, {@code Á} and {@code á}.
   */
  private static final String IGNORED = "`10-=~!@#$%^&*()_+[]\\{}|;':\",./<>?'\u00c1\u00e1\n";

  private static final String LOWER = "abcdefghijklmnopqrstuvwxyz";
  private static final String UPPER = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

  public void testToLowerCase() {
    assertThat(Ascii.toLowerCase(UPPER)).isEqualTo(LOWER);

@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class UninterruptiblesTest extends TestCase {
  private static final String EXPECTED_TAKE = "expectedTake";

  /** Timeout to use when we don't expect the timeout to expire. */
  private static final long LONG_DELAY_MS = 2500;

  private static final long SLEEP_SLACK = 2;

  private final TearDownStack tearDownStack = new TearDownStack();