*/
    @Test
    public void testReadBytes_NullFile() {
        try {
            FileUtil.readBytes(null);
            fail("Expected IllegalArgumentException");
        } catch (final IllegalArgumentException e) {
            // Expected
        }
    }

    /**
     * Test isPathSafe with null path throws exception
     */
    @Test
    public void testIsPathSafe_NullPath() {

        try {
            extractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
            // Note: validateCalled will be false because exception is thrown
            // before the flag can be set, which is the expected behavior

        }
        String text = sb.toString();
        String id = SuggestUtil.createSuggestTextId(text);
        assertNotNull(id);
        String expected = Base64.getEncoder().encodeToString(text.getBytes(CoreLibConstants.CHARSET_UTF_8));
        assertEquals(expected, id); // Should not be truncated
    }

    @Test
    public void testCreateSuggestTextIdWithUnicodeCharacters() {

     */
    public void test_getText_nullInputStream_throwsWithMessage() {
        try {
            textExtractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();
        logger.info(content);

        // Verify content contains expected fields
        assertTrue(content.contains("title"));
        assertTrue(content.contains("Sample Document"));
        assertTrue(content.contains("author"));
        assertTrue(content.contains("John Doe"));

     */
    public void test_ZipExtractor_nullInputStream_throwsWithMessage() {
        try {
            zipExtractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

        final TextExtractor extractor = container.getComponent("textExtractor");

        try {
            extractor.getText(null, null);
            fail("Expected CrawlerSystemException");
        } catch (final CrawlerSystemException e) {
            assertEquals("The inputstream is null.", e.getMessage());
        }
    }

    /**

     */
    public void testCreateCustomFilter_NullPatterns() {
        try {
            SerializeUtil.createCustomFilter(null);
            fail("Expected IllegalArgumentException");
        } catch (final IllegalArgumentException e) {
            // Expected
        }
    }

    /**
     * Test serialization with empty array
     *
     * @throws Exception
     */

                if (logger.isDebugEnabled()) {
                    logger.warn("Failed to parse max_access_count: '{}'. Expected: integer value", maxAccessCount, e);
                } else {
                    logger.warn("Failed to parse max_access_count: '{}'. Expected: integer value", maxAccessCount);
                }
            }
        }

    }

    public void test_escapeXml_allSpecialChars() {
        // Test all special characters
        String input = "Test & < > \"quote\" 'apos'";
        String expected = "Test &amp; &lt; &gt; &quot;quote&quot; &apos;apos&apos;";
        assertEquals(expected, XmlUtil.escapeXml(input));
    }

    public void test_escapeXml_noSpecialChars() {
        // Test string without special characters