value = "${var1${var2}}"; // The ${var2} part gets replaced first
        assertEquals("${var1value2}", ResourceUtil.resolve(value));

        // Test with special characters in replacement
        System.setProperty("special", "value$with\\backslash");
        value = "${special}";
        assertEquals("value$with\\backslash", ResourceUtil.resolve(value));

        assertEquals(exception1.getClass(), exception2.getClass());
    }

    @Test
    public void test_componentNameWithSpecialCharacters() {
        // Test component name with special characters
        String componentName = "my-component_v2.0@service";
        ContainerNotAvailableException exception = new ContainerNotAvailableException(componentName, new RuntimeException());

        FuzzyQueryBuilder fqb = (FuzzyQueryBuilder) result;
        assertEquals("title", fqb.fieldName());
        assertEquals(searchText, fqb.value());
    }

    // Test with special characters in term text
    @Test
    public void test_convertFuzzyQuery_withSpecialCharacters() {
        QueryContext context = new QueryContext("test", false);

        // Note: Field logging behavior depends on implementation
    }

    @Test
    public void test_convertPhraseQuery_withSpecialCharacters() {
        // Test with special characters in query
        PhraseQuery.Builder builder = new PhraseQuery.Builder();
        builder.add(new Term(Constants.DEFAULT_FIELD, "test@#$"));
        PhraseQuery phraseQuery = builder.build();

        assertEquals("", emptyMailEnv.getMailSubjectTestPrefix());
        assertEquals("", emptyMailEnv.getMailReturnPath());

        // Test with special characters
        FessEnv.SimpleImpl specialMailEnv = new FessEnv.SimpleImpl() {
            protected Properties prepareProperties() {
                Properties props = new Properties();

        }
        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) {

      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all

        } catch (ConfigPropertyNotFoundException e) {
            // Expected exception
            assertNotNull(e);
        }
    }

    // Test special characters in property values
    @Test
    public void test_get_specialCharacters() {
        String testKey = "special.chars";
        String specialValue = "!@#$%^&*()_+-=[]{}|;':\",./<>?";

        assertEquals("", chain.changePasswordCalls.get(0).getKey());
        assertEquals("", chain.changePasswordCalls.get(0).getValue());
    }

    // Test changePassword with special characters
    @Test
    public void test_changePassword_specialCharacters() {
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.changePasswordResult = true;

        // Each should be a different instance
        assertNotSame(provider1, provider2);
        assertNotSame(provider2, provider3);
        assertNotSame(provider1, provider3);
    }

    // Test with special characters in time adjustment string
    @Test
    public void test_specialCharactersInTimeAdjustment() {
        FessConfig specialConfig = new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;