latch.await();
    }

    @Override
    protected void triggerShutdown() {
      latch.countDown();
    }

    @Override
    protected String serviceName() {
      return this.getClass().getSimpleName() + "[" + index + "]";
    }
  }

  public void testNulls() {
    ServiceManager manager = new ServiceManager(Arrays.asList());
    new NullPointerTester()

  private void assertBadUseOfReferentialEquality(Class<?> cls) throws Exception {
    try {
      tester.testEquals(cls);
    } catch (AssertionError expected) {
      assertThat(expected).hasMessageThat().contains(cls.getSimpleName() + "(");
      return;
    }
    fail("should have failed for " + cls);
  }

  public void testParameterNotInstantiableForEqualsTest() throws Exception {
    assertThrows(

        }
        if (terminal instanceof AbstractPosixTerminal pt) {
            subs.add("pty=" + pt.getPty().getClass().getName());
        }
        return terminal.getClass().getSimpleName() + " (" + String.join(", ", subs) + ")";
    }

    protected void preCommands(C context) throws Exception {
        boolean verbose = context.invokerRequest.effectiveVerbose();

  }

  private static boolean containsNullable(Annotation[] annotations) {
    for (Annotation annotation : annotations) {
      if (NULLABLE_ANNOTATION_SIMPLE_NAMES.contains(annotation.annotationType().getSimpleName())) {
        return true;
      }
    }
    return false;
  }

  private boolean isIgnored(Member member) {
    return member.isSynthetic()
        || ignoredMembers.contains(member)

  private static <T> T expectArgument(Class<T> type, Object arg) {
    try {
      return type.cast(arg);
    } catch (ClassCastException e) {
      throw new IllegalArgumentException(arg + " is not a " + type.getSimpleName());
    }
  }

  /** A TypeTable maintains mapping from {@link TypeVariable} to types. */
  private static class TypeTable {
    private final ImmutableMap<TypeVariableKey, Type> map;

    TypeTable() {

  }

  private static boolean containsNullable(Annotation[] annotations) {
    for (Annotation annotation : annotations) {
      if (NULLABLE_ANNOTATION_SIMPLE_NAMES.contains(annotation.annotationType().getSimpleName())) {
        return true;
      }
    }
    return false;
  }

  private boolean isIgnored(Member member) {
    return member.isSynthetic()
        || ignoredMembers.contains(member)

    }
    // generateInt() is 1-based.
    return Iterables.get(instances, (generateInt() - 1) % instances.size());
  }

  private static String paramString(Class<?> type, int i) {
    return type.getSimpleName() + '@' + i;
  }

  /**
   * Annotates a method to be the instance generator of a certain type. The return type is the
   * generated type. The method parameters correspond to the generated type's type parameters. For

   * Returns the name of this service. {@link AbstractScheduledService} may include the name in
   * debugging output.
   *
   * @since 14.0
   */
  protected String serviceName() {
    return getClass().getSimpleName();
  }

  @Override
  public String toString() {
    return serviceName() + " [" + state() + "]";
  }

  @Override
  public final boolean isRunning() {
    return delegate.isRunning();

   * used in exception and warning output.
   */
  private static String getLockName(Enum<?> rank) {
    return rank.getDeclaringClass().getSimpleName() + "." + rank.name();
  }

  /**
   * A {@code CycleDetectingLockFactory.WithExplicitOrdering} provides the additional enforcement of

    }
    // generateInt() is 1-based.
    return Iterables.get(instances, (generateInt() - 1) % instances.size());
  }

  private static String paramString(Class<?> type, int i) {
    return type.getSimpleName() + '@' + i;
  }

  /**
   * Annotates a method to be the instance generator of a certain type. The return type is the
   * generated type. The method parameters correspond to the generated type's type parameters. For