May 18 2015 08:25 AM
Looks like there is a difference between the java you used for compilation and the java with which you are trying to execute. Please look here -> http://stackoverflow.com/questions/22489398/unsupported-major-minor-version-52-0
Solution is to update to latest java 7 , use it to compile and execute it. Also note that CDH3 is not supported, better to upgrade to CDH4.