static final ImmutableMap<String, String> TEST_STRINGS =
      ImmutableMap.<String, String>builder()
          .put("empty", "")
          .put("1 char", "0")
          .put("1 word", "hello")
          .put("2 words", "hello world")
          .put("\\n line break", "hello\nworld")
          .put("\\r line break", "hello\rworld")
          .put("\\r\\n line break", "hello\r\nworld")

@GwtCompatible
@ElementTypesAreNonnullByDefault
final class RelationshipTester<T> {

  static class ItemReporter {
    String reportItem(Item<?> item) {
      return item.toString();
    }
  }

  /**
   * A word about using {@link Equivalence}, which automatically checks for {@code null} and
   * identical inputs: This sounds like it ought to be a problem here, since the goals of this class

     * @return true if the OS matches
     *
     */
    public static boolean isFamily(String family, String actualOsName) {
        // windows probing logic relies on the word 'windows' in the OS
        boolean isWindows = actualOsName.contains(FAMILY_WINDOWS);
        boolean is9x = false;
        boolean isNT = false;
        if (isWindows) {

                "fess_config.bad_word", //
                "fess_config.boost_document_rule", //
                "fess_config.crawling_info", //
                "fess_config.crawling_info_param", //
                "fess_config.data_config", //
                "fess_config.duplicate_host", //
                "fess_config.elevate_word", //
                "fess_config.elevate_word_to_label", //

  /**
   * A builder for creating immutable bimap instances, especially {@code public static final} bimaps
   * ("constant bimaps"). Example:
   *
   * <pre>{@code
   * static final ImmutableBiMap<String, Integer> WORD_TO_INT =
   *     new ImmutableBiMap.Builder<String, Integer>()
   *         .put("one", 1)
   *         .put("two", 2)
   *         .put("three", 3)
   *         .buildOrThrow();
   * }</pre>
   *

            params.put("User Info ID", e.getUserInfoId());
            params.put("User Session ID", e.getUserSessionId());
            params.put("Access Type", e.getAccessType());
            params.put("Search Word", e.getSearchWord());
            params.put("Requested Time", FessFunctions.formatDate(e.getRequestedAt()));
            params.put("Query Time", toNumberString(e.getQueryTime()));

   * consider the following:
   *
   * <ul>
   *   <li>it may split surrogate pairs
   *   <li>it may split characters and combining characters
   *   <li>it does not consider word boundaries
   *   <li>if truncating for display to users, there are other considerations that must be taken
   *       into account
   *   <li>the appropriate truncation indicator may be locale-dependent

    }

    default void setWebApiPopularWord(final boolean value) {
        setSystemPropertyAsBoolean(Constants.WEB_API_POPULAR_WORD_PROPERTY, value);
    }

    default boolean isWebApiPopularWord() {
        return getSystemPropertyAsBoolean(Constants.WEB_API_POPULAR_WORD_PROPERTY, true);
    }

    default void setCsvFileEncoding(final String value) {

   * A builder for creating immutable sorted map instances, especially {@code public static final}
   * maps ("constant maps"). Example:
   *
   * <pre>{@code
   * static final ImmutableSortedMap<Integer, String> INT_TO_WORD =
   *     new ImmutableSortedMap.Builder<Integer, String>(Ordering.natural())
   *         .put(1, "one")
   *         .put(2, "two")
   *         .put(3, "three")
   *         .buildOrThrow();
   * }</pre>

   * bits.
   *
   * @param h hash code
   */
  static int rehash(int h) {
    // Spread bits to regularize both segment and index locations,
    // using variant of single-word Wang/Jenkins hash.
    // TODO(kevinb): use Hashing/move this to Hashing?
    h += (h << 15) ^ 0xffffcd7d;
    h ^= (h >>> 10);
    h += (h << 3);
    h ^= (h >>> 6);
    h += (h << 2) + (h << 14);