It taken the backup for specfied zzzzz.sql perfectly, when the database have lessthan 10 kb size.
i taken the 2453kb size , it dump the .sql file, one table have more than 150000 row. but it shown only 1 insert statement with below statement
Why do you interfere mysqldump file with java? -r option will direct the output to file. Remove readers and writers and just execute the process, I suppose you will see the correct content in the "/Backup/zzzzz.sql" file. msyqldump will handle it. For more options see MySQL 5.1 Reference : mysqldump