Jdbc driver class cannot be loaded with gradle 2.0 (but worked with 1.12)

Same problem:

* What went wrong:
Execution failed for task ':loadDB'.
> No suitable driver found for jdbc:h2:mem:test

Here is my version output:

gradle -v
  ------------------------------------------------------------
Gradle 2.0
------------------------------------------------------------
  Build time:
 2014-07-01 07:45:34 UTC
Build number: none
Revision:
   b6ead6fa452dfdadec484059191eb641d817226c
  Groovy:
     2.3.3
Ant:
        Apache Ant(TM) version 1.9.3 compiled on December 23 2013
JVM:
        1.8.0_11 (Oracle Corporation 25.11-b03)
OS:
         Linux 3.15.8-200.fc20.x86_64 amd64