private static class TestBean {
        @CronExpression
        private String cronExpression;

        public String getCronExpression() {
            return cronExpression;
        }

        public void setCronExpression(String cronExpression) {
            this.cronExpression = cronExpression;
        }
    }

    private interface SpecialGroup {
    }

                    logger.info("Starting Job {}:{}", id, scheduledJob.getName());
                    final String cronExpression = scheduledJob.getCronExpression();
                    job.reschedule(cronExpression, op -> op.changeNoticeLogToDebug().params(paramsOp));
                } else {
                    logger.info("Inactive Job {}:{}", id, scheduledJob.getName());

        assertTrue(validator.determineValid("\t"));
        assertTrue(validator.determineValid("\n"));
    }

    public void test_initialize() {
        final CronExpression cronExpression = null;
        validator.initialize(cronExpression);
    }

    public void test_determineValid_invalidExpressions() {
        assertFalse(validator.determineValid("invalid"));

        assertEquals("{constraints.TypeAny.message}", FessMessages.CONSTRAINTS_TypeAny_MESSAGE);
        assertEquals("{constraints.UriType.message}", FessMessages.CONSTRAINTS_UriType_MESSAGE);
        assertEquals("{constraints.CronExpression.message}", FessMessages.CONSTRAINTS_CronExpression_MESSAGE);

        // Test error message constants
        assertEquals("{errors.login.failure}", FessMessages.ERRORS_LOGIN_FAILURE);