Hibernate version:
3.3.0 GA

Debug level Hibernate log excerpt:
2008-08-16 12:00:34,499 DEBUG (Configuration.java:1281) - resolving reference to class: foo.bar.Customer
2008-08-16 12:00:34,499 DEBUG (Configuration.java:1281) - resolving reference to class: foo.bar.Order
2008-08-16 12:00:34,608 INFO (DriverManagerConnectionProvider.java:64) - Using Hibernate built-in connection pool (not for production use!)
2008-08-16 12:00:34,608 INFO (DriverManagerConnectionProvider.java:65) - Hibernate connection pool size: 20
2008-08-16 12:00:34,608 INFO (DriverManagerConnectionProvider.java:68) - autocommit mode: false
2008-08-16 12:00:34,624 INFO (DriverManagerConnectionProvider.java:103) - using driver: com.mysql.jdbc.Driver at URL: jdbc:mysql://localhost:3306/foobar?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true
2008-08-16 12:00:34,624 INFO (DriverManagerConnectionProvider.java:106) - connection properties: {user=foobar, password=foobar}
2008-08-16 12:00:34,624 DEBUG (DriverManagerConnectionProvider.java:132) - opening new JDBC connection
2008-08-16 12:00:35,108 DEBUG (DriverManagerConnectionProvider.java:138) - created connection to: jdbc:mysql://localhost:3306/foobar?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true, Isolation Level: 4
2008-08-16 12:00:35,108 INFO (SettingsFactory.java:116) - RDBMS: MySQL, version: 5.0.51a-community-nt
2008-08-16 12:00:35,108 INFO (SettingsFactory.java:117) - JDBC driver: MySQL-AB JDBC Driver, version: mysql-connector-java-5.0.8 ( Revision: ${svn.Revision} )

hibernate.cfg.xml


I switched to hibernate 3.3.0 GA, didn't change anything in my hibernate.cfg.xml, but now the log tells me "Using Hibernate built-in connection pool (not for production use!)"
c3p0-0.9.1.jar is included in the project dependencies.

Am I doing something wrong?

thanks

include hibernate-c3p0.jar into your classpath (included in 3.3.0 distribution)

Thanks for your reply.

I can't find this jar inside hibernate-distribution-3.3.0.GA-dist.zip
It only has c3p0-0.9.1.jar which is already in my classpath.

I'll try again.

I can't find the file hibernate-c3p0.jar either, but I don't have any problem with C3P0. It could be that my hibernate.cfg.xml is a bit different:

Thanks a lot! That solved it.



The weird thing is that I've been using hibernate in production for 1.5 years now and never had to use that configuration option.

I wasn't aware of this option since http://www.hibernate.org/214.html and http://www.mchange.com/projects/c3p0/in ... e-specific do not mention it.

thanks again