Hi All, We want to use CLOB in servlet. For this we created Oracle 9i Datasouce in -ds.xml file. But we getting ClassCast Exception while we retreiving the WrappedConnection from Datasource connection. DataSource ds = (DataSource) ctx.lookup("java:/OracleDS"); con = ds.getConnection();//DPDao.getConnection(); System.out.println("Connection class = " + con.getClass().getName()); // This returns "$Proxy55" // This block is never executed. if(con instanceof org.jboss.resource.adapter.jdbc.WrappedConnection){ WrappedConnection wc=(WrappedConnection)con; //with getUnderlying connection method , cast it to Oracle Connection Connection oracleConnection=wc.getUnderlyingConnection(); } Basically we getting Proxy connection when we want to retriev the Oracle underlying connection in our servlet code. Thanks in advance ! -PrasP View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4138976#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...