GGTS -3.1.0 - Problem when using JDK7 and Grails 2.2.0

[Papfoo]

I try to use the GGTS with JDK7 and Grails 2.2.0 (Groovy 2.0 compiler) on a windows7 system.
My Problem is that when I create a Grails project the project can not be compiled because the ConfigLoader.groovy class in the cache-1.0.1-plugin is causing a problem.

Description: Internal compiler error: java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method)

Element: ConfigLoader.groovy

Folder: .link_to_grails_plugins/cache-1.0.1/src/groovy/grails/plugin/cache

Any ideas how i can solve this problem without changing the JDK and/or Grails version ?

Regards
Ivan

[Andy Clement]

Hi Ivan,

Sounds like some part of your setup isn't running with Java7. Not sure which pieces you are configuring but I could imagine it isn't enough just to configure a Java7 JRE inside GGTS but you must also launch GGTS using a 1.7 JDK? How are you utilising Java7?

cheers
Andy

[Papfoo]

Hi Andy,

thanks you for the hint. The case was exactly that the JDK the GGTS was started with was a JDK6 and not a JDK7 like used in the project. So my compile error is gone. Now I face another one - the app cant be stared with the run-app command from inside the GGTS. From command line everything ok. The error says :

Error opening zip file or JAR manifest missing : null
Error occurred during initialization of VM
agent library failed to init: instrument

After a research I found the anwsers to make it run at https://issuetracker.springsource.com/browse/STS-3128

cheers
Ivan