com.mchange.v2.resourcepool.CannotAcquireResourceException: A ResourcePool could not acquire a resource from its primary factory or source

Question

I have MySQL under my Hibernate and I am also using c3p0-0.9.1 for connection pool.

When running on my laptop (I mean locally) I have no errors. But when I deploy it

Answer 1

Another problem which may cause this kind of exception is that your JDBC driver doesn't exists in the classpath ...