Java Database Connectivity (JDBC)

Hello,

I got this strange message after connecting for a while to the weblogic server :

java.sql.SQLException: [BEA][SQLServer JDBC Driver]No more data available to read.

And just restarting the weblogic server, I could re-obtain my resultSets of a simple servlet accessing database.

I do not know why, most of the time this test servlet (connecting to database and getting resultsets) works, and suddendly this servlet does not work at all (generates the previous error, and the only way to make it work again is to restart the server....! ).

Do you have any idea ?
Many Thanks.