want[0] = Level3{
		Level2: Level2{
			Level1s: []Level1{
				{Value: "value1"},
				{Value: "value2"},
			},
		},
		Level2_1: Level2_1{
			Level1s: []Level1{
				{
					Value:   "value1-1",
					Level0s: []Level0{{Value: "Level0-1"}},
				},
				{
					Value:   "value2-2",
					Level0s: []Level0{{Value: "Level0-2"}},
				},
			},
		},
	}

    private @Nullable V value;
    boolean loading = false;

    public DummyValueReference() {
      this.loading = true;
    }

    public DummyValueReference(V value) {
      this.value = value;
    }

    public static <K, V> DummyValueReference<K, V> create(V value) {
      return new DummyValueReference<>(value);
    }

        System.setProperty("custom.prop.one", "value1");
        System.setProperty("custom.prop.two", "value2");
        System.setProperty("other.property", "value3");

        // Test with regex pattern
        execJob.testAddFessCustomSystemProperties(cmdList, "custom\\.prop\\..*");

        assertEquals(2, cmdList.size());
        assertTrue(cmdList.contains("-Dcustom.prop.one=value1"));

        crawlingInfoHelper.putToInfoMap("key1", "value1");
        assertNotNull(crawlingInfoHelper.infoMap);

        // Test adding multiple entries
        crawlingInfoHelper.putToInfoMap("key2", "value2");
        crawlingInfoHelper.putToInfoMap("key3", "value3");

        assertEquals("value1", crawlingInfoHelper.infoMap.get("key1"));
        assertEquals("value2", crawlingInfoHelper.infoMap.get("key2"));

          DeferredCloser closer,
          @ParametricNullness V1 value1,
          @ParametricNullness V2 value2,
          @ParametricNullness V3 value3,
          @ParametricNullness V4 value4,
          @ParametricNullness V5 value5)
          throws Exception;
    }

    /**
     * A function that returns a {@link ClosingFuture} when applied to the values of the five

    // Test getting array-like configuration values
    public void test_get_arrayValues() {
        String arrayKey = "array.values";
        String arrayValue = "value1,value2,value3";

        System.setProperty(Constants.FESS_CONFIG_PREFIX + arrayKey, arrayValue);

        try {
            String value = fessConfig.get(arrayKey);
            assertEquals(arrayValue, value);
        } finally {

        value = " value1 , value2 , value3 ";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(3, result.length);
        assertEquals(" value1 ", result[0]);
        assertEquals(" value2 ", result[1]);
        assertEquals(" value3 ", result[2]);

        // Spaces in quoted values
        value = "\" spaced value \",\"  another  \"";
        result = KuromojiCSVUtil.parse(value);

        BooleanQuery.Builder boolQueryBuilder = new BooleanQuery.Builder();
        TermQuery termQuery1 = new TermQuery(new Term("field1", "value1"));
        TermQuery termQuery2 = new TermQuery(new Term("field2", "value2"));
        TermQuery termQuery3 = new TermQuery(new Term("field3", "value3"));

        boolQueryBuilder.add(termQuery1, BooleanClause.Occur.MUST);
        boolQueryBuilder.add(termQuery2, BooleanClause.Occur.SHOULD);

        // Test minimum value
        event.setVersionNo(Long.MIN_VALUE);
        assertEquals(Long.valueOf(Long.MIN_VALUE), event.getVersionNo());

        // Test zero
        event.setVersionNo(0L);
        assertEquals(Long.valueOf(0L), event.getVersionNo());

        // Test maximum value
        event.setVersionNo(Long.MAX_VALUE);
        assertEquals(Long.valueOf(Long.MAX_VALUE), event.getVersionNo());

          DeferredCloser closer,
          @ParametricNullness V1 value1,
          @ParametricNullness V2 value2,
          @ParametricNullness V3 value3,
          @ParametricNullness V4 value4,
          @ParametricNullness V5 value5)
          throws Exception;
    }

    /**
     * A function that returns a {@link ClosingFuture} when applied to the values of the five