onAttackEntity method not working Minecraft

Hello guys !
I made a hack client for Minecraft 1.5.2 and 1.6.2 using a modulemanager and I used the method:
@override
public void onAttackEntity(EntityPlayer par1EntityPlayer, Entity par2Entity){
}

To use some of the hacks....
I tried to update my client to 1.7.10 all of the hacks work except the ones using this method.
I even did System.out.println but nothing shows up.
HELP ME PLEASE !

I think it would be better to post this thread in the Minecraft subforum.

That's what I did.. was told to go here