I'm not here to argue or disagree with anyone PeaceB. I grew up Catholic, most of my family still is. I just want people to know that they can't save themselves, it is a tremendous relief coming to that realization. To answer your post though, James does not contradict Paul. Here is a verse proving that James and Paul's teachings are in harmony.
"For in Christ Jesus neither circumcision nor uncircumcision counts for anything, but only faith working through love".
Galatians 5:6