A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property.

[madhup narain]

I had been using JPA in the same application and had configured the persistence.xml to pick up the data source from the admin console.
Suddenly now i see an error in the logs that says :


<openjpa-1.0.1-r420667:592145 fatal user error> org.apache.openjpa.persistence.ArgumentException: A JDBC Driver or DataSource class name must be specified in the ConnectionDriverName property.



What i have tried to do -
1. I recreated the datasource from the admin console
2. I deleted and recreated the persistence.xml

Above options have not worked.

3. From admin console my datasource tested successfully.



Contents of my Persistence.xml are as follows :

<?xml version="1.0" encoding="UTF-8"?> <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.0" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd"> <persistence-unit name="DealerPortalDS"/> </persistence>

Does someone have any ideas as to what might have happened ? Any help will be appreciated.

[Joao Bosco Jares]

I´m with the same problem, any one can help us?

[Joao Bosco Jares]

Some help..
http://publib.boulder.ibm.com/infocenter/wasinfo/v7r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/tdat_purequeryresref.html