assertThat(StringUtil.defaultString("aaa", null), is("aaa"));
        assertThat(StringUtil.defaultString(null, null), is(nullValue()));
    }

    @Test
    public void testNewStringUnsafe() {
        assertNull(StringUtil.newStringUnsafe(null));
        Method newStringUnsafeMethod = StringUtil.newStringUnsafeMethod;
        if (newStringUnsafeMethod != null) {

      return get(key) != null;
    }

    @Override
    public void clear() {
      FilteredEntryMultimap.this.clear();
    }

    @Override
    @CheckForNull
    public Collection<V> get(@CheckForNull Object key) {
      Collection<V> result = unfiltered.asMap().get(key);
      if (result == null) {
        return null;
      }

        ArtifactRepository r = repositorySystem.createArtifactRepository(
                "local", "file://" + getLocalRepositoryPath().getAbsolutePath(), repoLayout, null, null);

        return r;
    }

    // ----------------------------------------------------------------------
    // Project building
    // ----------------------------------------------------------------------

            if (matchesName(declaration.fieldName, field.name) && declaration.isSince(version)) true
            else null

        override fun visit(declaration: EnumConstantDeclaration, arg: Unit?): Boolean? =
            if (declaration.matchesNameAndIsSince(field.name, version)) true
            else null
    }


private
fun isSinceJavaConstructorVisitorFor(classSimpleName: String, version: String) =

        return higher;
      }
    }
    return null;
  }

  @CheckForNull
  public E ceiling(E e) {
    ImmutableSortedSet<E> set = tailSet(e, true);
    return !set.isEmpty() ? set.first() : null;
  }

  @CheckForNull
  public E floor(E e) {
    ImmutableSortedSet<E> set = headSet(e, true);
    return !set.isEmpty() ? set.last() : null;
  }

        try {
            final SuggestItem item =
                    contentsParser.parseSearchWords(words, null, fields, tags, roles, num, readingConverter, normalizer, analyzer, langs);
            if (item == null) {
                return new SuggestIndexResponse(0, 1, null, System.currentTimeMillis() - start);
            }
            final long parseTime = System.currentTimeMillis();

        return RandomStringUtils.random(ComponentUtil.getFessConfig().getApiAccessTokenLengthAsInteger(), 0, 0, true, true, null, random);
    }

    public String getAccessTokenFromRequest(final HttpServletRequest request) {
        final String token = request.getHeader("Authorization");
        if (token != null) {
            final String[] values = token.trim().split(" ");
            if (values.length == 2 && BEARER.equals(values[0])) {

                return matcher.group(3);
            }
            return null;
        }).filter(s -> s != null).toArray(n -> new String[n]);
    }

    public static int getJavaVersion() {
        final String javaVersion = System.getProperty("java.version");
        int version = 8;
        if (javaVersion != null) {
            final String[] split = javaVersion.split("[\\._]");
            if (split.length > 0) {

     *
     * @param model The model whose report plugin configuration should be expanded, must not be <code>null</code>.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    void expandPluginConfiguration(Model model, ModelBuildingRequest request, ModelProblemCollector problems);

     * @param message The detail message of the problem, may be {@code null}.
     * @param line The one-based index of the line containing the problem or {@code -1} if unknown.
     * @param column The one-based index of the column containing the problem or {@code -1} if unknown.
     * @param cause The cause of the problem, may be {@code null}.
     */