Easy mod installer a java exception has occurred?

I want to get the herobrine mod for minecraft but it says that a java exception occurred please help me and if I got the wrong download can you give me a tutorial on how I can get it o and i'm on 1.7.4

When you get an exception in Java it gives a long output called a "stack trace" which says exactly where in the program the exception happened and what type of exception happened.

Having the stack trace would be helpful in figuring out what the problem is/

"… It says that a java exception occurred…"

What says?