*/
  static String nullToEmpty(@Nullable String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not empty; {@code null} otherwise
   */
  static @Nullable String emptyToNull(@Nullable String string) {

      @Override
      protected Multiset<String> create(String[] elements) {
        return unmodifiableMultiset(LinkedHashMultiset.create(asList(elements)));
      }

      @Override
      public List<String> order(List<String> insertionOrder) {
        List<String> order = new ArrayList<>();
        for (String s : insertionOrder) {
          int index = order.indexOf(s);

                    val someVal: String = "some"
                    var someVar: String = "some"
                    fun foo(): String = "bar"
                }
            """,
            v2 = """
                class Source {
                    val someVal: String? = null
                    var someVar: String? = null
                    fun foo(): String? = null
                }
            """
        ) {

  public void testStaticMethod_returning() throws Exception {
    Invokable<?, Iterable<String>> delegate =
        Prepender.method("prepend", String.class, Iterable.class)
            .returning(new TypeToken<Iterable<String>>() {});
    assertEquals(new TypeToken<Iterable<String>>() {}, delegate.getReturnType());
    Iterable<String> result = delegate.invoke(null, "a", ImmutableList.of("b", "c"));

     */
    public String[] getInputs() {
        return inputs == null ? null : inputs.clone();
    }

    /**
     * Returns all input sequences joined with newline characters as a single string.
     * This is useful for display purposes in forms and user interfaces.
     *
     * @return string representation of all inputs separated by newlines, or empty string if inputs is null
     */

        fun addedWithInvalidSince(thing: String, desc: String): List<String> =
            listOf(
                "$thing ${describe(thing, desc)}: Is not annotated with @Incubating.",
                "$thing ${describe(thing, desc)}: Has invalid @since: it should be 2.0, but currently is 1.0."
            )

        fun removed(thing: String, desc: String): Pair<String, List<String>> =

        String query = "";
        Map<String, String[]> fields = new HashMap<>();
        Map<String, String[]> conditions = new HashMap<>();
        String[] languages = new String[0];
        GeoInfo geoInfo = null;
        FacetInfo facetInfo = null;
        HighlightInfo highlightInfo = null;
        String sort = "";
        int startPosition = 0;
        int pageSize = 10;

     * @param defaultValue the default value to return if key is not found or value is null
     * @return the parameter value as a String, or defaultValue if not found
     */
    public String getAsString(final String key, final String defaultValue) {
        final String value = getAsString(key);
        if (value != null) {
            return value;
        }
        return defaultValue;
    }

    /**

                  protected SortedMap<String, String> create(Entry<String, String>[] entries) {
                    NavigableMap<String, String> innermost = new SafeTreeMap<>();
                    for (Entry<String, String> entry : entries) {
                      innermost.put(entry.getKey(), entry.getValue());
                    }
                    TestMap<String, String> inner = new TestMap<>(innermost, mutex);

    @Override
    String normalizeWord(String word) {
      return firstCharOnlyToUpper(word);
    }

    @Override
    String normalizeFirstWord(String word) {
      return Ascii.toLowerCase(word);
    }
  },

  /** Java and C++ class naming convention, e.g., "UpperCamel". */
  UPPER_CAMEL(CharMatcher.inRange('A', 'Z'), "") {
    @Override
    String normalizeWord(String word) {