Map<String, Object> value = new LinkedHashMap<>();
        DocMap docMap = new DocMap(value);
        assertTrue(docMap.isEmpty());
        value.clear();

        List<String> keys = Arrays.asList("test_2", "test_0", "lang", "test_1");
        value.put(keys.get(0), true);
        value.put(keys.get(1), 1000);
        value.put(keys.get(2), "ja");
        value.put(keys.get(3), "str");
        docMap = new DocMap(value);

    }

    public void test_sizeOf_complexNestedStructures() {
        // Complex nested structure
        Map<String, Object> complexMap = new HashMap<>();
        complexMap.put("strings", Arrays.asList("test1", "test2"));
        complexMap.put("numbers", Arrays.asList(1, 2, 3));
        complexMap.put("nested", Maps.map("inner", "value").$());
        complexMap.put("array", new String[] { "array1", "array2" });

        assertNull(System.getProperty("test." + now));
        appValue.set("=abc\nfess." + now + "=test1\ntest." + now + "=test2");
        helper.updateSystemProperties();
        assertEquals("test1", System.getProperty("fess." + now));
        assertEquals("test2", System.getProperty("test." + now));
    }

    public void test_getCurrentTime() {
        final Date currentTime = systemHelper.getCurrentTime();

    }

    public void test_constructor_withUrlMessageExceptionAndAbortTrue() {
        // Test with URL, message, exception, and abort set to true
        String url = "http://example.com/test2";
        String message = "Critical error message";
        Exception cause = new IllegalStateException("Critical error");
        boolean abort = true;

    IllegalArgumentException expected =
        assertThrows(IllegalArgumentException.class, () -> builder.build());
    assertThat(expected).hasMessageThat().contains("one");
  }

  public void testOf() {
    assertMapEquals(ImmutableBiMap.of("one", 1), "one", 1);
    assertMapEquals(ImmutableBiMap.of("one", 1).inverse(), 1, "one");
    assertMapEquals(ImmutableBiMap.of("one", 1, "two", 2), "one", 1, "two", 2);

                .build())
        .addEqualityGroup(
            ImmutableListMultimap.<String, Integer>builder().put("bar", 2).put("foo", 3).build())
        .testEquals();
  }

  public void testOf() {
    assertMultimapEquals(ImmutableListMultimap.of("one", 1), "one", 1);
    assertMultimapEquals(ImmutableListMultimap.of("one", 1, "two", 2), "one", 1, "two", 2);
    assertMultimapEquals(

            .put("one", 1)
            .put("one", 2); // throwing on this line would be even better

    assertThrows(IllegalArgumentException.class, () -> builder.build());
  }

  public void testOf() {
    assertMapEquals(ImmutableSortedMap.of("one", 1), "one", 1);
    assertMapEquals(ImmutableSortedMap.of("one", 1, "two", 2), "one", 1, "two", 2);
    assertMapEquals(

                .build())
        .addEqualityGroup(
            ImmutableSetMultimap.<String, Integer>builder().put("bar", 2).put("foo", 3).build())
        .testEquals();
  }

  public void testOf() {
    assertMultimapEquals(ImmutableSetMultimap.of("one", 1), "one", 1);
    assertMultimapEquals(ImmutableSetMultimap.of("one", 1, "two", 2), "one", 1, "two", 2);
    assertMultimapEquals(

        final CommandGenerator generator2 = new CommandGenerator();

        generator1.setCommandList(Collections.singletonList("echo test1"));
        generator2.setCommandList(Collections.singletonList("echo test2"));

        generator1.setCommandTimeout(1000L);
        generator2.setCommandTimeout(2000L);

        assertTrue("Multiple generators should work independently", true);
    }

                .build())
        .addEqualityGroup(
            ImmutableSetMultimap.<String, Integer>builder().put("bar", 2).put("foo", 3).build())
        .testEquals();
  }

  public void testOf() {
    assertMultimapEquals(ImmutableSetMultimap.of("one", 1), "one", 1);
    assertMultimapEquals(ImmutableSetMultimap.of("one", 1, "two", 2), "one", 1, "two", 2);
    assertMultimapEquals(