* @throws PACDecodingException if validation fails
     */
    public String check(final String string) throws PACDecodingException {
        if (this.pointer == 0 && string != null) {
            throw new PACDecodingException("Non-empty string");
        }

        final int expected = this.length / 2;
        if (string.length() != expected) {

    void testJoinWithMixedCharSequenceTypes() {
        String str = "string";
        StringBuilder builder = new StringBuilder("builder");
        StringBuffer buffer = new StringBuffer("buffer");
        String result = StringUtil.join(",", str, builder, buffer);
        assertEquals("string,builder,buffer", result);
    }

    @ParameterizedTest

        fun wrap(a: kotlin.collections.List<String>, b: kotlin.collections.ArrayList<String>): Unit = Unit

        fun wrap(a: kotlin.collections.Set<String>, b: kotlin.collections.HashSet<String>, c: kotlin.collections.LinkedHashSet<String>): Unit = Unit

        fun wrap(a: kotlin.collections.Map<String, String>, b: kotlin.collections.Map.Entry<String, String>): Unit = Unit

  public static class ImmutableListMultimapGenerator extends TestStringListMultimapGenerator {
    @Override
    protected ListMultimap<String, String> create(Entry<String, String>[] entries) {
      ImmutableListMultimap.Builder<String, String> builder = ImmutableListMultimap.builder();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();
    }
  }

    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract ListMultimap<String, String> create(Entry<String, String>[] entries);

  @Override
  @SuppressWarnings("unchecked")

                .build(new CacheLoader<String, List<Map<String, String>>>() {
                    @Override
                    public List<Map<String, String>> load(final String key) throws Exception {
                        final ULocale uLocale = new ULocale(key);
                        final Locale displayLocale = uLocale.toLocale();
                        final List<Map<String, String>> langItems = new ArrayList<>(supportedLanguages.length);

        RelatedQuery entity = createRelatedQuery("term", new String[] { "query" }, "");
        String key = relatedQueryHelper.getHostKey(entity);
        assertEquals("", key);
    }

    @Test
    public void test_getHostKey_nullVirtualHost() {
        RelatedQuery entity = createRelatedQuery("term", new String[] { "query" }, null);
        String key = relatedQueryHelper.getHostKey(entity);
        assertEquals("", key);

            };
        }
        return new String(array);
    }

    /**
     * Fixes a string to match Windows-specific mapping rules.
     *
     * @param source
     *            The string
     * @return The string fixed to match Windows-specific mapping rules
     */
    public static String toWindowsMapping(final String source) {
        if (isEmpty(source)) {
            return source;

    @SuppressWarnings("checkstyle:parameternumber")
    protected static String constructMissingArtifactMessage(
            String message,
            String indentation,
            String groupId,
            String artifactId,
            String version,
            String type,
            String classifier,
            String downloadUrl,
            List<String> path) {
        StringBuilder sb = new StringBuilder(message);

  private static final class ImmutableSetMultimapGenerator extends TestStringSetMultimapGenerator {
    @Override
    protected SetMultimap<String, String> create(Entry<String, String>[] entries) {
      ImmutableSetMultimap.Builder<String, String> builder = ImmutableSetMultimap.builder();
      for (Entry<String, String> entry : entries) {
        builder.put(entry.getKey(), entry.getValue());
      }
      return builder.build();
    }
  }