public void swigTakeOwnership() {
   swigCMemOwn = true;
   CollisionJNI.btInternalTriangleIndexCallback_change_ownership(this, swigCPtr, true);
 }
 public void swigReleaseOwnership() {
   swigCMemOwn = false;
   CollisionJNI.btInternalTriangleIndexCallback_change_ownership(this, swigCPtr, false);
 }