}

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    public String toString() {
        final String hash = Integer.toHexString(hashCode());

    }

    // Test common valid cron patterns that are likely to work
    @Test
    public void test_basicValidCronExpressions() {
        final ConstraintValidatorContext context = null;

        // Test basic patterns that should be valid
        String[] potentiallyValidCrons = { "0 0 * * * ?", // Every hour
                "0 */15 * * * ?", // Every 15 minutes
                "0 0 12 * * ?", // Daily at noon

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();

                canRunTogether,
            )
    }
}

/**
 * Determine the number of buckets for the first element in the list
 * when it needs to be split into several smaller pieces.
 *
 * The basic idea is:
 * 1. Make sure the rest elements has at least one bucket.
 * 2. Make sure the "roughSizeOfEachBucket" for the rest elements is smaller than the current "roughSizeOfEachBucket".
 */

        sourceMap.put(field, value);
    }

    // ===================================================================================
    //                                                                      Basic Override
    //                                                                      ==============
    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();