Connection Dead Exception in Sybase : Memory Leakage issue in Weblogic Server

If you are facing some Memory Leakage Problems in Web Applications and if it is a J2EE Struts based Web Application deployed in Weblogic Server 8.1. The memory in the server gets dumped in about 3-4 days and recycling needs to be done in the nodes to free up the memory. And also if the application does not have any EJB Transaction Management. Then follow the below resolutions and try it.

1)The memory issue could be the result of repeated ‘connection closed exception’ and its stack trace.
2)The checking, whether the connection is closed or not is wrong ‘DBUtil. closeQueryObjects’ method. Refer the following code

if(con != null){
try{con.close();
}
catch(Exception e){
m_logger.error("Exception when closing connection", e);
}

3)The right way to check whether a connection is closed or not id connection.isClosed()