@Override
            public Tuple3<String, String, String>[] getVirtualHosts() {
                return new Tuple3[] { new Tuple3<>("Host", "example.com", "site1"), new Tuple3<>("X-Forwarded-Host", "test.com", "site2") };
            }
        });

        MockletHttpServletRequest request = getMockRequest();

        // No matching host header
        String key = virtualHostHelper.getVirtualHostKey();

              @Override
              protected Set<String> create(String[] elements) {
                String[] deduped = dedupe(elements);
                return new AbstractSet<String>() {
                  @Override
                  public int size() {
                    return deduped.length;
                  }

                  @Override
                  public Iterator<String> iterator() {

        @Override
        public Map<String, String[]> getFields() {
            final Map<String, String[]> fields = new HashMap<>();
            for (final Map.Entry<String, String[]> entry : request.getParameterMap().entrySet()) {
                final String key = entry.getKey();
                if (key.startsWith("fields.")) {
                    final String[] value = simplifyArray(entry.getValue());

            .<String>nodeOrder(ElementOrder.<String>natural());
    ImmutableValueGraph.Builder<String, Integer> immutableValueGraphBuilder =
        graphBuilder.<String, Integer>immutable();

    // Update ValueGraphBuilder, but this shouldn't impact immutableValueGraphBuilder
    graphBuilder.allowsSelfLoops(false).nodeOrder(ElementOrder.<String>unordered());

        Tuple3<String, String, String> task = thumbnailGenerator.createTask("", docMap);
        assertNull(task);
    }

    public void test_createTask_withNullDocMap() {
        // Test task creation with null document map
        String path = "/path/to/document.pdf";

        Tuple3<String, String, String> task = thumbnailGenerator.createTask(path, null);
        assertNull(task);
    }

    private static final String NAME_PREFIX = "searchListTest_";
    private static final String API_PATH = "/api/admin/searchlist";
    private static final String LIST_ENDPOINT_SUFFIX = "docs";
    private static final String ITEM_ENDPOINT_SUFFIX = "doc";

    private static final String KEY_PROPERTY = "title";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

        return getBytes(str, UNI_ENCODING);
    }

    /**
     * Encodes a string into ASCII bytes.
     *
     * @param str the string to encode
     * @return the string as bytes (ASCII)
     */
    public static byte[] getASCIIBytes(final String str) {
        return getBytes(str, ASCII_ENCODING);
    }

    /**
     * Encodes a string into bytes using the OEM encoding from the configuration.
     *

  <function>
    <description>
      Returns a string resulting from replacing in an input string all occurrences
      of a "before" string into an "after" substring.
    </description>
    <name>replace</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String replace(java.lang.Object, java.lang.String, java.lang.String)</function-signature>

    }

    protected MoreLikeThisQueryBuilder regMoreLikeThisQueryQ(String name, String[] likeTexts) {
        MoreLikeThisQueryBuilder moreLikeThisQuery = QueryBuilders.moreLikeThisQuery(new String[] { name }, likeTexts, null);
        regQ(moreLikeThisQuery);
        return moreLikeThisQuery;
    }

    protected SpanTermQueryBuilder regSpanTermQ(String name, String value) {
        checkEsInvalidQuery(name, value);

          {new MapRetrievalCache<String, String>(new HashMap<String, String>())},
          {new MapRetrievalCache<String, String>(new TreeMap<String, String>(nullsLast))}
        });
  }

  @Before
  public void init() {
    mapCache.clear();
  }

  @Test
  public void testKeySetIterator() {
    mapCache.put("A", "A_value");