We’ve been planning to use some type of data connection pooling for quite a while and decided to use the commons-dbcp from Apache.
In our applicationContext-jbdc.xml, we specify the url. I’m using Eclipse, so I formed a habit of doing a CTRL+SHIFFT+F to automatically format the XML for easy read before I deployed the project. BAD idea.
Ok, fine it was rejected. What was the error thrown?
org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class ‘com.ibm.as400.access.AS400JDBCDriver’
It took us FOREVER++ to find out where the hell this problem came up. BAH!