Being almost a lifelong Texan, I hate to admit it but I've never hunted javelina. Sure would like to though. I did draw down on a javelina I caught on the 3D course at the public archery range in Phoenix one time. Naturally I couldn't shoot it. I just wanted to be able to say I once had one at my mercy.
From what I've heard from friends who have hunted them, be careful when you skin it. They have a musk gland on their back that'll flat ruin the meat if you get careless. Have a good hunt!