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From Markus Keller <>
Subject Re: tomcat 4.1.12 JDBC driver class 'null'
Date Tue, 01 Oct 2002 13:57:59 GMT

I am getting the error with postgresql when I try to create a JDBC 
Connection Pool (tomcat 4.1.12 - mod_webapp and standalone). A JDBC ralm 
with the same database server and the same database works without 
problems. I do not now how to solve that problem. Please post to the 
list, if you find a solution.



Jake Tweer wrote:

> I'm getting the same error with MySQL and I've seen posts for 
> PostgreSQL, MySQL and Oracle.  I have followed all suggestions with no 
> luck except for one case - the example given in the JNDI - How To 
> works for me.  The example is using standalone Tomcat and that works.  
> As soon as I use Apache/mod_webapp I get the exception Cannot load 
> JDBC driver class 'null'.
> Robert Herold wrote:
>> I've been happily using tomcat 4.0.4 for a while, and thought I'd 
>> upgrade to
>> version 4.1.12.  Alas, I cannot get tomcat to find my Oracle JDBC driver
>> when I use 4.1.12.  It worked fine in 4.0.4.

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