try {
      escaper.escape((String) null);
      Assert.fail("exception not thrown when escaping a null string");
    } catch (NullPointerException e) {
      // pass
    }
  }

  /**
   * Asserts that an escaper escapes the given character into the expected string.
   *
   * @param escaper the non-null escaper to test
   * @param expected the expected output string
   * @param c the character to escape
   */

    ListMultimap<String, Integer> unusedA =
        MultimapBuilder.hashKeys().arrayListValues().<String, Integer>build();
    SortedSetMultimap<String, Integer> unusedB =
        rawtypeToWildcard(MultimapBuilder.linkedHashKeys().treeSetValues())
            .<String, Integer>build();
    SetMultimap<String, Integer> unusedC =
        MultimapBuilder.treeKeys(String.CASE_INSENSITIVE_ORDER)
            .hashSetValues()
            .<String, Integer>build();

                }
            }
        });
    }

    protected String getParamValue(final DataStoreParams paramMap, final String key, final String defaultValue) {
        return paramMap.getAsString(key, defaultValue);
    }

    protected void addDocument(final DataStoreParams paramMap, final Map<String, Object> dataMap) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

    }


    public String check ( String string ) throws PACDecodingException {
        if ( this.pointer == 0 && string != null )
            throw new PACDecodingException("Non-empty string");

        int expected = this.length / 2;
        if ( string.length() != expected ) {
            throw new PACDecodingException("Invalid string length, expected " + expected + ", have " + string.length());
        }

private
fun <T> T.matchesNameAndIsSince(candidateName: String, version: String): Boolean where T : BodyDeclaration<*>, T : NodeWithSimpleName<*> =
    takeIf { it.matchesName(candidateName) }?.isSince(version) == true


private
fun <T : NodeWithSimpleName<*>> T.matchesName(candidateName: String) =
    matchesName(name.asString(), candidateName)


private
fun matchesName(name: String, candidateName: String) =

        private final String id;

        private String url;

        public StatsKeyObject(final String id) {
            this.id = id;
        }

        public String getId() {
            return id;
        }

        public void setUrl(final String url) {
            this.url = url;
        }

        protected String getUrl() {
            if (url != null) {

    return parseUnsignedLong(string, 10);
  }

  /**
   * Returns the unsigned {@code long} value represented by a string with the given radix.
   *
   * <p><b>Java 8+ users:</b> use {@link Long#parseUnsignedLong(String, int)} instead.
   *
   * @param string the string containing the unsigned {@code long} representation to be parsed.
   * @param radix the radix to use while parsing {@code string}

            final StringBuilder sb = new StringBuilder(100);
            final List<String> fields = new ArrayList<>();
            final List<String> tags = new ArrayList<>();
            final List<String> roles = new ArrayList<>();

            for (final Pair<String, String> searchFieldLog : searchLog.getSearchFieldLogList()) {
                final String name = searchFieldLog.getFirst();
                if (contentFieldNameSet.contains(name)) {

        }
    }

    public void add(final String mimetype, final String filetype) {
        mimetypeMap.put(mimetype, filetype);
    }

    public String get(final String mimetype) {
        final String filetype = mimetypeMap.get(mimetype);
        if (StringUtil.isBlank(filetype)) {
            return defaultValue;
        }
        return filetype;
    }

    public String getDefaultValue() {
        return defaultValue;

        }

        final Set<String> matchedLabelSet = ComponentUtil.getLabelTypeHelper().getMatchedLabelValueSet(url);
        if (!matchedLabelSet.isEmpty()) {
            final Set<String> newLabelSet = new HashSet<>();
            final String[] oldLabels = DocumentUtil.getValue(dataMap, fessConfig.getIndexFieldLabel(), String[].class);