We are using JConnect 5 and JDK 1.5 in our application. We use connection pool to get the connection and close the connection after using it by con.close(). But appraently the connections are not getting closed and we can see lots of DB connections in the syabse server. Due to this we are running out of user connections on syabse server. Can someone let me know what could be wrong. We are using Adaptive Server Enterprise/12.0. The same code was working fine with JDK 1.3.1.