*/
      return;
    }
    for (Method method : ParameterTest.class.getDeclaredMethods()) {
      for (Parameter param : Invokable.from(method).getParameters()) {
        new NullPointerTester().testAllPublicInstanceMethods(param);
      }
    }
  }

  public void testEquals() {
    EqualsTester tester = new EqualsTester();
    for (Method method : ParameterTest.class.getDeclaredMethods()) {

       */
      return;
    }
    for (Method method : ParameterTest.class.getDeclaredMethods()) {
      for (Parameter param : Invokable.from(method).getParameters()) {
        new NullPointerTester().testAllPublicInstanceMethods(param);
      }
    }
  }

  public void testEquals() {
    EqualsTester tester = new EqualsTester();
    for (Method method : ParameterTest.class.getDeclaredMethods()) {

    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 =
      () -> {
        throw new RuntimeException();
      };

    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 =
      () -> {
        throw new RuntimeException();
      };

    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertThat(Striped.lock(100).size()).isAtLeast(100);

    return concat(strongImplementations(), weakImplementations());
  }

  public void testNull() throws Exception {
    for (Striped<?> striped : allImplementations()) {
      new NullPointerTester().testAllPublicInstanceMethods(striped);
    }
  }

  public void testSizes() {
    // not bothering testing all variations, since we know they share implementations
    assertThat(Striped.lock(100).size()).isAtLeast(100);

  }

  public void testNulls() {
    monitor.enter(); // Inhibit IllegalMonitorStateException
    new NullPointerTester()
        .setDefault(Monitor.Guard.class, new TestGuard(true))
        .testAllPublicInstanceMethods(monitor);
  }

  // TODO: Test enter(long, TimeUnit).
  // TODO: Test enterWhen(Guard, long, TimeUnit).
  // TODO: Test enterIf(Guard, long, TimeUnit).
  // TODO: Test waitFor(Guard, long, TimeUnit).

  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(EnumHashBiMap.class);
    new NullPointerTester().testAllPublicInstanceMethods(EnumHashBiMap.create(Currency.class));
  }

  }

  public void testNulls() {
    monitor.enter(); // Inhibit IllegalMonitorStateException
    new NullPointerTester()
        .setDefault(Monitor.Guard.class, new TestGuard(true))
        .testAllPublicInstanceMethods(monitor);
  }

  // TODO: Test enter(long, TimeUnit).
  // TODO: Test enterWhen(Guard, long, TimeUnit).
  // TODO: Test enterIf(Guard, long, TimeUnit).
  // TODO: Test waitFor(Guard, long, TimeUnit).

  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testNulls() {
    new NullPointerTester().testAllPublicStaticMethods(EnumHashBiMap.class);
    new NullPointerTester().testAllPublicInstanceMethods(EnumHashBiMap.create(Currency.class));
  }