Andrey Hihlovskiy
Professional blog on groovy, gradle, Java, Javascript and other stuff.
Change in JDK 1.7.0_25 breaks all grails applications
Posted by on July 17, 2013
Change in JDK 1.7.0_25 breaks all grails applications:
https://bugzilla.redhat.com/show_bug.cgi?id=976693
I just tried grails 2.2.3 – the problem is still not fixed, the application fails to start with an error message “Could not determine Hibernate dialect for database name [H2]”
Any workarounds suggesting to replace hibernate libraries don’t work.
The following additional parameter allows to start grails:
grails -noreloading run-app
But hey, it’s no fun to start in no-reloading mode! Oracle, but things back!
Andrey Hihlovskiy 
I am sorry mate, but I have several apps in Grails 2.2.3 and 2.2.4 running on JDK_1.7.0_25-b17 64bit in windows and 32 bit in linux with no problems whatsoever
Please see my post Solution for Grails/JDK 1.7.0_25 compatibility problem. A problem is specific to OpenJDK. Surely you have Oracle JDK (not OpenJDK) on Windows.
But, anyway, thanks for careful reading.
Check this out: http://jira.grails.org/browse/GRAILS-10183#comment-75788 It’s been fixed for 2.2.3