Spring-Test-Framework for 1.6 project

i've a project with jdk1.6.0_45. Now i want to test my spring-controller. I get this exception:

javax/servlet/ServletException : Unsupported major.minor version 51.0 I suppose, that some dependencies were compiled with 1.7

And when i execute my test with jre1.7, it works, but i get some other error. I guess, i have to execute tests with a same jre-version like a project, which i want to test.

Whole dependencies and source-code you can find here:

http://ift.tt/2m74vJc

I can't execute this with jdk1.6.0_45.