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From aku1234 <>
Subject RE: Tomcat 5.5.25 -> 6.0.14 upgrade problem
Date Fri, 12 Oct 2007 00:27:40 GMT

Thanks for telling me about your issue.  I experimented unsuccessfully with 
different locations for the jar files in Tomcat 6.

Glassfish v2 is now stable.  I was able to use that without running into
the JNDI problems that I had with Tomcat 6.

Paul Anderson-12 wrote:
> Hi,
> I had a problem before with this upgrade scenario using the Oracle
> drivers, and asked the list. I was asked if the JAR was in
> $CATALINA_HOME/lib - it was - no further ideas.
> I have never had a problem before with JDK 4 or 5 on TC5.5, just with
> JDK6 and TC6, so I temporarily abandoned my upgrade.
> I only had the problem with *cross-context* webapp invocations, in this
> case via Liferay's WAR. Maybe that's significant. If I used a JSP for
> JNDI lookup and requested the page directly, with the DBCP kit in
> WEB-INF/lib, all was OK.
> Here's my message again:
> When doing cross-context invocations of a portlet in Liferay that
> references container-managed Datasources by JNDI, I get:- 
> Cannot load JDBC driver class 'oracle.jdbc.driver.OracleDriver'
> java.lang.ClassNotFoundException: oracle.jdbc.driver.OracleDriver
> The driver JAR was in <SERVER>/lib. ($CATALINA_HOME/lib)
> When I put dbcp, commons-pool and the driver JAR in the portlet WAR file
> and create the Datasource myself, no problem.
> When looking up the container Datasource directly from a JSP (no
> cross-context webapp invocation), no problem.
> I tried upgrading to a later JDK 6 Oracle 11i driver, but no luck, the
> problem was not specific to Oracle's driver version.
> Other people have had classloading problems too, and said it's a bug in
> TC6 with use of Class.forName()
> So I stuck with TC5.5 on JDK 5 for the moment - the problem's blocking
> our upgrade path.
> Is this a known fault with TC6 that will be fixed?
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