* ListProperty[T] -> original type becomes List[T]
     * ConfigurableFileCollection -> original type becomes FileCollection
     */
    Class<?> originalType() default DefaultValue.class;

    /**
     * Whether the setter accessor for property was fluent
     */
    boolean fluentSetter() default false;

    /**

	// disable with -1 sentinel
	if value == disableTTL {
		klog.V(2).Infof("image policy webhook %s disabled", name)
		return time.Duration(0), nil
	}

	// use default with 0 sentinel
	if value == useDefault {
		klog.V(2).Infof("image policy webhook %s using default value", name)
		return defaultValue, nil
	}

                String defaultValue = ce.getAttribute("default-value", null);
                if (value != null || defaultValue != null) {
                    XmlNodeImpl e = new XmlNodeImpl(
                            ce.getName(),
                            value,
                            defaultValue != null ? Collections.singletonMap("default-value", defaultValue) : null,
                            null,

        }
    }

    protected <T> T getInitParameter(final String key, final T defaultValue, final Class<T> clazz) {
        if (initParamMap != null) {
            try {
                final Object paramValue = initParamMap.get(key);
                if (paramValue == null) {
                    return defaultValue;
                }

                return convertObj(paramValue, clazz);

			*uint, *uint8, *uint16, *uint32, *uint64, *[]byte:
			reflect.ValueOf(out).Elem().Set(reflect.ValueOf(defaultValue))
		case *big.Int:
			if defaultValue, ok := defaultValue.(*big.Int); ok {
				out.(*big.Int).Set(defaultValue)
			} else {
				panic("out points to big.Int, but defaultValue does not")
			}
		default:
			panic("invalid integer type")
		}
		return true
	}

  }

  @Override
  public boolean isPresent() {
    return true;
  }

  @Override
  public T get() {
    return reference;
  }

  @Override
  public T or(T defaultValue) {
    checkNotNull(defaultValue, "use Optional.orNull() instead of Optional.or(null)");
    return reference;
  }

  @Override
  public Optional<T> or(Optional<? extends T> secondChoice) {
    checkNotNull(secondChoice);

// ComponentConfig from the default recommended value in kubeadm.
func warnDefaultComponentConfigValue(componentConfigKind, paramName string, defaultValue, userValue interface{}) {
	klog.Warningf("The recommended value for %q in %q is: %v; the provided value is: %v",
		paramName, componentConfigKind, defaultValue, userValue)

	list := NewListType(StringType, -1)
	if !list.IsList() {
		t.Error("list type not identifiable as list")
	}
	if list.TypeName() != "list" {
		t.Errorf("got %s, wanted list", list.TypeName())
	}
	if list.DefaultValue() == nil {
		t.Error("got nil zero value for list type")
	}
	if list.ElemType.TypeName() != "string" {
		t.Errorf("got %s, wanted elem type of string", list.ElemType.TypeName())
	}
	expT, err := list.ExprType()

        systemPropertyQueried(key, consumer);
        return Integer.getInteger(key, defaultValue);
    }

    // Called by generated code.
    public static Integer getInteger(String key, Integer defaultValue, String consumer) {
        systemPropertyQueried(key, consumer);
        return Integer.getInteger(key, defaultValue);
    }

        def result = getMapUnderTestToRead().getOrDefault(key, 'defaultValue')

        then:
        result == expectedResult
        1 * listener.onAccess(key, trackedValue)

        where:
        key                     | trackedValue     | expectedResult
        EXISTING_KEY            | EXISTING_VALUE   | EXISTING_VALUE
        MISSING_KEY             | null             | 'defaultValue'