I have this web application running on weblogic 5.1 SP8, with Oracle server 8.1.7. To use the batch updates feathure of JDBC2.0, I upload the classes12.zip to the server, and changed the startWebLogic.sh to replace the classes111.zip with classes12.zip in java class path. But, when my program call the statement.addBatch, it gave the following error: java.lang.AbstractMethodError: weblogic/jdbc/pool/Statement.addBatch Seems the jdbc driver doesn't support this method. To confirm it, I called the driver.getMajorVersion and it returned 1. Can anyone tell me how to make the weblogic support the JDBC2.0? Thanks.