MySql and Java Swings interface (no replies)

Hi all,

I Have made a Swing interface which is reading and writing on the database every 20 seconds. It works fine for some 3-4 days continuously but after that suddenly stops updating and reading the database. I am not able to understand what the issue can be. I have closed all the connections and checked for all the sockets.. Please help me as the this is like a headache for me and i m not able to move ahead due to this.

Thanks in Advance for help

Regards,
Yash Sharma