doc.put("boolStr2", "false");
        assertEquals(Boolean.FALSE, DocumentUtil.getValue(doc, "boolStr2", Boolean.class));
    }

    @Test
    public void test_boolean_conversion() {
        Map<String, Object> doc = new HashMap<>();

        doc.put("boolTrue", true);
        assertEquals(Boolean.TRUE, DocumentUtil.getValue(doc, "boolTrue", Boolean.class));

        assertNotNull(crawlerProcesses);
        assertEquals(3, crawlerProcesses.intValue());
    }

    // Test boolean conversions
    @Test
    public void test_booleanConversions() {
        // Test boolean conversion for ignore idle threads
        boolean ignoreIdleThreads = fessConfig.isCrawlerHotthreadIgnoreIdleThreads();
        assertTrue(ignoreIdleThreads);
    }