lateinit var providedBy: Set<String>

    private
    lateinit var selected: String

    private
    var upgrade: String? = null

    internal
    fun configure(components: ComponentMetadataHandler, configurations: ConfigurationContainer) {
        if (upgrade != null) {
            configurations.forceUpgrade(selected, upgrade!!)
        } else {
            providedBy.forEachIndexed { idx, provider ->

	Int     *float64       `parser:" | @Int"` // To avoid value out of range, use float64 instead
	String  *LiteralString `parser:" | @LitString"`
	Boolean *Boolean       `parser:" | @(\"TRUE\" | \"FALSE\")"`
	Null    bool           `parser:" | @\"NULL\""`
	Missing bool           `parser:" | @\"MISSING\")"`
}

// Identifier represents a parsed identifier
type Identifier struct {
	Unquoted *string           `parser:"  @Ident"`

     * values are not allowed, and will cause {@link #build} to fail.
     *
     * @throws NullPointerException if any key or value in {@code map} is null
     */
    @CanIgnoreReturnValue
    @Override
    public Builder<K, V> putAll(Map<? extends K, ? extends V> map) {
      super.putAll(map);
      return this;
    }

    /**

  public void testGet_comparable() {
    @SuppressWarnings("unchecked") // The null value can compare with any Object
    Comparable<Object> comparable = ArbitraryInstances.get(Comparable.class);
    assertEquals(0, comparable.compareTo(comparable));
    assertTrue(comparable.compareTo("") > 0);
    assertThrows(NullPointerException.class, () -> comparable.compareTo(null));
  }

  public void testGet_array() {

    return fromMapEntries(multimap.asMap().entrySet(), null);
  }

  /**
   * Returns an immutable multimap containing the specified entries. The returned multimap iterates
   * over keys in the order they were first encountered in the input, and the values for each key
   * are iterated in the order they were encountered.
   *
   * @throws NullPointerException if any key, value, or entry is null
   * @since 19.0
   */

   * excluded from the automated null tests performed by this method.
   */
  @Test
  public void testNulls() throws Exception {
    for (Class<?> classToTest : findClassesToTest(loadClassesInPackage(), NULL_TEST_METHOD_NAMES)) {
      if (classToTest.getSimpleName().equals("ReflectionFreeAssertThrows")) {
        /*
         * These classes handle null properly but throw IllegalArgumentException for the default

        // cid
        final String configId = config.getConfigId();
        if (configId != null) {
            defaultDataMap.put(fessConfig.getIndexFieldConfigId(), configId);
        }
        //  expires
        if (documentExpires != null) {
            defaultDataMap.put(fessConfig.getIndexFieldExpires(), documentExpires);
        }
        // segment

        });

    }

    protected boolean isImageMimeType(final ResponseData responseData) {
        final String mimeType = responseData.getMimeType();
        if (mimeType == null) {
            return true;
        }

        return switch (mimeType) {
        case "image/png", "image/gif", "image/jpeg", "image/bmp" -> true;
        default -> false;
        };
    }

  static <T extends Throwable> T assertThrows(
      Class<T> expectedThrowable, ThrowingRunnable runnable) {
    return doAssertThrows(
        expectedThrowable,
        () -> {
          runnable.run();
          return null;
        },
        /* userPassedSupplier= */ false);
  }

  private static <T extends Throwable> T doAssertThrows(
      Class<T> expectedThrowable, ThrowingSupplier supplier, boolean userPassedSupplier) {

    }

    public static boolean equalsDeep(Object m1, Object m2) {
        try {
            if (m1 == m2) {
                return true;
            }
            if (m1 == null || m2 == null) {
                return false;
            }
            if (!Objects.equals(m1.getClass(), m2.getClass())) {
                return false;
            }