}
        if (keyObj instanceof final Number key) {
            return OptionalThing.of(key.toString());
        }
        return OptionalThing.empty();
    }

    /**
     * Escapes special characters in a value string for safe logging.
     *
     * @param action the string value to escape
     * @return the escaped string with tabs replaced by spaces
     */
    protected String escapeValue(final String action) {

        searchRenderData.setSearchQuery(complexQuery);
        assertEquals(complexQuery, searchRenderData.getSearchQuery());

        // Test with special characters
        String specialQuery = "test + query - exclude \"exact phrase\" *wildcard?";
        searchRenderData.setSearchQuery(specialQuery);
        assertEquals(specialQuery, searchRenderData.getSearchQuery());
    }

   * have the bug.
   *
   * @deprecated This implementation produces incorrect hash values from the {@link
   *     HashFunction#hashString} method if the string contains non-BMP characters. Use {@link
   *     #murmur3_32_fixed(int)} instead.
   */
  @Deprecated
  @SuppressWarnings("IdentifierName") // the best we could do for adjacent digit blocks
  public static HashFunction murmur3_32(int seed) {

        request.setRequestURI("/other/v1/search");
        assertFalse(manager.matches(request));
    }

    public void test_matches_withSpecialCharacters() {
        // Test matching with special characters in path
        WebApiManager manager = new TestWebApiManager("/api/");

        TestHttpServletRequest request = new TestHttpServletRequest();
        request.setRequestURI("/api/search?query=test");

            assertNotNull(type3.getNTResponse());
        });
    }

    @Test
    @DisplayName("Should handle special characters in credentials")
    void testSpecialCharacters() throws Exception {
        // Given
        Type2Message type2 = createMockType2Message();
        String specialDomain = "TEST-DOMAIN_123";

	// the format has several limitations making it unsuitable for some usages.
	// Most notably, it cannot support sparse files, files larger than 8GiB,
	// filenames larger than 256 characters, and non-ASCII filenames.
	//
	// Reference:
	//	http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	FormatUSTAR

	// FormatPAX represents the PAX header format defined in POSIX.1-2001.

        assertNull(crawlerContext.getSessionId());

        crawlerContext.setSessionId("");
        assertEquals("", crawlerContext.getSessionId());

        // Test with special characters
        crawlerContext.setSessionId("session-with-特殊文字-#123");
        assertEquals("session-with-特殊文字-#123", crawlerContext.getSessionId());
    }

    /**
     * Test activeThreadCount getter and setter

                longMessage.append("This is a very long error message. ");
            }
            WebApiUtil.setError(500, longMessage.toString());

            // Test with special characters in message
            WebApiUtil.setError(400, "Error with special chars: àáâãäåæçèéêë ñ 中文 🚀");

        } catch (Exception e) {
            fail("Error handling should work with edge cases: " + e.getMessage());

crawler.document.duplicate.term.removed=false
# Unicode space characters for document parsing.
crawler.document.space.chars=u0009u000Au000Bu000Cu000Du001Cu001Du001Eu001Fu0020u00A0u1680u180Eu2000u2001u2002u2003u2004u2005u2006u2007u2008u2009u200Au200Bu200Cu202Fu205Fu3000uFEFFuFFFDu00B6
# Unicode full stop characters for document parsing.
crawler.document.fullstop.chars=u002eu06d4u2e3cu3002
# Encoding for crawling data.

        // Test with empty name
        TestTransformer emptyNameTransformer = new TestTransformer("");
        assertEquals("", emptyNameTransformer.getName());

        // Test with special characters
        TestTransformer specialNameTransformer = new TestTransformer("trans-former_123#");
        assertEquals("trans-former_123#", specialNameTransformer.getName());
    }

    /**