You have two options if a j.D will put your back into the corner:
1. 6C(2): If you are really close enough to the corner that a j.D will put you into it, than the second hit of 6C should make them wall bound, at that point just follow up the wall bounce with 6C into drive ender.
2. j.D(ending with you in the corner) > d.6D > d.6B > d.5D > d.5C > Assault Through: This one is a bit tricky to explain, but bear with me. After a juggled d.5C you can use assault through, this does not combo, however if your opponent neutral techs, you have frame advantage, if they don't tech, they get hit by assault through as a blue beat. In this situation, if they tech, you have advantage and can pressure them, while they are a bit closer to the corner, if they decide to get hit, then assault through will send them into the corner, giving you better positioning.