WebLogic Can't find JDBC Connection created in IDE

Hi,
Got a strange problem. I am migrating to JDeveloper 11g an EJB application that was running fine in 10.x. I have a problem with database connections. Although I can successfully create a connection using the Database Navigator - and I can add it to my project. When I launch the application, I get the following error when WebLogic Integrated Server starts up:
<Oct 29, 2008 8:15:59 PM EDT> <Error> <Deployer> <BEA-149265> <Failure occurred in the execution of deployment request with ID '1225325759343' for task '0'. Error is: 'weblogic.application.ModuleException: '
weblogic.application.ModuleException:
     at weblogic.jdbc.module.JDBCModule.prepare(JDBCModule.java:289)
     at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93)
     at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:387)
     at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37)
     at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:58)
     Truncated. see log file for complete stacktrace
weblogic.common.resourcepool.ResourceSystemException: Cannot load driver class: com.microsoft.jdbc.sqlserver.SQLServerDriver
Yes, I know it's the SQLServer JDBC Driver (shame on me); but it is a library listed in my application, it is also registered within the IDE.
I did also notice that creating a database connection does NOT create a connections.xml file anywhere on my machine, although I notice that your documentation on the web tells me it should.
Any ideas?
Best regards,
Nigel

Hi,
WLS seems to have a problem with loading the JDBC driver. I suggest you create a Java EE data source in WLS and then use this data source in your application. Before you do this, and if you have time, can you create a quick testcase from scratch with the same code you used in 10.1.3 ? Doing this allows to exclude a migration problem
Frank

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