OC4j Developer Preview problem with JDBC

Question

I'm running the developer preview of OC4J (9.0.4) and trying to get a connection to SQL Server 2000 for my CMP 2.0 entity beans.
I have a setup and configuration that works on Orion 2.0, but when I moved it over to OC4J it no longer worked. I get an error
SQL error: Io exception: The Network Adapter could not establish the connection
I checked my data-sources.xml file to make sure the syntax was OK and the driver url and properties were correct (they worked on Orion so they should be), and they looked OK.
This fails both with the JSQLConnect driver and with the recommended DataDirect driver. For the latter my data-sources.xml entry looks like:
<data-source
class="com.evermind.sql.DriverManagerDataSource"
name="MSSQL"
schema="database-schemas/ms-sql.xml"
location="jdbc/foo"
xa-location="jdbc/foo"
ejb-location="jdbc/foo"
connection-driver="com.ddtek.jdbc.sqlserver.SQLServerDriver"
url="jdbc:sqlserver://localhost;DatabaseName=foo;User=foouser;Password=foo"
username="foouser"
password="foo"
max-connections="5"
min-connections="2"
inactivity-timeout="30"
/>
The same URL works fine using DataDirect's JDBC Test utility.
I can't find anything useful in any of the OC4J logs and have basically run out of options to get OC4J working.
Any help much appreciated.
Thanks
Alan

Answer 1

Hi Steve
I had the JDBC driver jars in j2ee/home/lib (with pointers via <library> tags in server.xml).
The j2ee/home/applib directory didn't exist so I created it and copied the driver files there but alas it didn't help. (I also modified the appropriate <library> tags in server.xml but that didn't help.) I still get the same error.
When I removed the JDBC driver jars altogether then I did get an additional error:
Error initializing data-source 'jdbc/foo': DriverManagerDataSource driver 'com.ddtek.jdbc.sqlserver.SQLServerDriver' not found.
So it looks like the underlying problem is not inability to load the jars.