firewall and db connection pool

[gardliu]

once one db connectio pool has established ,Will the firewall of db server destory the connection of the connection pool and make the connection not work well ,when the firewall reconfig the ip or refresh the ip configration;

[gardliu]

help me??
what causes this exception?
java.sql.SQLException: Message file 'oracle.jdbc.dbaccess.Messages' is missing.
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java, Compiled Code)

[David O'Meara]

"gardliu",
The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp .
We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please re-register and select a new name which meets the requirements.
Thanks.
Dave

[garde liu]

Thanks attention!
Who can tell me the cause of this Exception?
I am very helpless!
java.sql.SQLException: Message file 'oracle.jdbc.dbaccess.Messages' is missing.
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java, Compiled Code)

[Adam Hardy]

I haven't come across that exception before but it sounds like your Oracle JDBC driver is up the creek. Have you looked in your Oracle driver zip files to see if that file is present at all?
Have you tried reinstalling your Oracle client on your webserver? Maybe your Oracle JDBC files are missing or duplicated or from different versions.