MapReduce Programming jar deployment

I am new to java programming in realtime, I made changes to class so that we can pass arguments for input and Output directory. Once I save the changes made and run it on the webconsole by passing the directory values, it stops abruptly.
Interesting part is if I go by hardcoded values for the directories and change the output directory name , it runs successfully.

Also git pull always shows github upto date for me.
Please let me know if any changes I need to make on build.xml.