JoelDroidLollipopBatchDeodexer not working!

I need help with setting up JoelDroidLollipopBatchDeodexer I am on the process of deodexing my stock rom downloaded at samobile. I need to deodex my rom so that I can install Xposed Framework. I downloaded Java and opened JoelDroidLollipopBatchDeodexer and it shows

Java Version: Not Installed
Java Path Variable: Not Setup

I have no clue how to path so that JoelDroidLollipopBatchDeodexer will work.
Help will be much appreciated!

EDIT: Just flashed 5.0.2 HXX Rom