assertEquals("errors.password_no_lowercase", systemHelper.validatePassword("PASSWORD1!"));
        assertEquals("errors.password_no_digit", systemHelper.validatePassword("Password!"));
        assertEquals("errors.password_no_special_char", systemHelper.validatePassword("Password1"));
        assertEquals("", systemHelper.validatePassword("Password1!"));

        assertTrue("Result should contain password={cipher}, but was: " + result, result.contains("password={cipher}"));

        // Test with empty encryption target
        value = "password=";
        result = ParameterUtil.encrypt(value);
        assertTrue(result.contains("password={cipher}"));

        // Test with only whitespace value
        value = "password=   ";
        result = ParameterUtil.encrypt(value);

        }
    }

    @Override
    public boolean changePassword(final String username, final String password) {
        if (isTargetUser(username) && StringUtil.isNotBlank(password)) {
            return executeCommand(updateCommand, username, password) == 0;
        }
        return true;
    }

    @Override
    public User load(final User user) {
        return user;
    }

    /**

errors.invalid_str_is_included = {0} non è valido in {1}.
errors.blank_password = La password è obbligatoria.
errors.password_length = La password deve contenere almeno {0} caratteri.
errors.password_no_uppercase = La password deve contenere almeno una lettera maiuscola.
errors.password_no_lowercase = La password deve contenere almeno una lettera minuscola.
errors.password_no_digit = La password deve contenere almeno una cifra.

    }

    /**
     * Validates a password against configured password policy requirements.
     *
     * @param password The password to validate.
     * @return An empty string if the password is valid, or an error key for the validation failure.
     */
    public String validatePassword(final String password) {
        if (StringUtil.isBlank(password)) {
            return "errors.blank_password";
        }

        this.pager = value;
    }

    public String getPassword() {
        checkSpecifiedProperty("password");
        return convertEmptyToNull(password);
    }

    public void setPassword(String value) {
        registerModifiedProperty("password");
        this.password = value;
    }

    public String getPhysicalDeliveryOfficeName() {

            if (form.crudMode.intValue() == CrudMode.CREATE || StringUtil.isNotBlank(form.password)) {
                final String encodedPassword = ComponentUtil.getComponent(FessLoginAssist.class).encryptPassword(form.password);
                entity.setOriginalPassword(form.password);
                entity.setPassword(encodedPassword);
            }

    }

    // Helper methods

    private void setupMockConfig(String fesenUrl, String username, String password) {
        setupMockConfig(fesenUrl, username, password, "");
    }

    private void setupMockConfig(String fesenUrl, String username, String password, String certificateAuthorities) {
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

        boolean result = chain.changePassword(null, "password");

        assertFalse(result);
        assertEquals(1, chain.changePasswordCalls.size());
        assertNull(chain.changePasswordCalls.get(0).getKey());
        assertEquals("password", chain.changePasswordCalls.get(0).getValue());
    }

    // Test changePassword with null password
    @Test
    public void test_changePassword_nullPassword() {

        private final String password;

        public TestLoginCredential(String username, String password) {
            this.username = username;
            this.password = password;
        }

        public String getUsername() {
            return username;
        }

        public String getPassword() {
            return password;
        }
    }