public static int checkAsyncBackupCount(int currentBackupCount, int newAsyncBackupCount) {
        if (currentBackupCount < 0) {
            throw new IllegalArgumentException("backup-count can't be smaller than 0");
        }

        if (newAsyncBackupCount < 0) {
            throw new IllegalArgumentException("async-backup-count can't be smaller than 0");
        }

        if (newAsyncBackupCount > MAX_BACKUP_COUNT) {
            throw new IllegalArgumentException("async-backup-count can't be larger than than " + MAX_BACKUP_COUNT);
        }

        if (currentBackupCount + newAsyncBackupCount > MAX_BACKUP_COUNT) {
            throw new IllegalArgumentException("the sum of backup-count and async-backup-count can't be larger than than "
                    + MAX_BACKUP_COUNT);
        }

        return newAsyncBackupCount;
    }
public static int checkAsyncBackupCount ( int currentBackupCount , int newAsyncBackupCount ) { if ( currentBackupCount < 0 ) { throw new IllegalArgumentException ( "backup-count can't be smaller than 0" ) ; } if ( newAsyncBackupCount < 0 ) { throw new IllegalArgumentException ( "async-backup-count can't be smaller than 0" ) ; } if ( newAsyncBackupCount > MAX_BACKUP_COUNT ) { throw new IllegalArgumentException ( "async-backup-count can't be larger than than " + MAX_BACKUP_COUNT ) ; } if ( currentBackupCount + newAsyncBackupCount > MAX_BACKUP_COUNT ) { throw new IllegalArgumentException ( "the sum of backup-count and async-backup-count can't be larger than than " + MAX_BACKUP_COUNT ) ; } return newAsyncBackupCount ; }
Tests if the newAsyncBackupCount count is valid.

@param currentBackupCount  the current number of backups
@param newAsyncBackupCount the new number of async backups
@return the newAsyncBackupCount
@throws java.lang.IllegalArgumentException if asyncBackupCount is smaller than 0, or larger than the maximum
number of backups.