@Override
    public void read(JmeImporter importer) throws IOException {
        super.read(importer);
        InputCapsule capsule = importer.getCapsule(this);
        buildObject();
        setPhysicsLocation((Vector3f) capsule.readSavable("physicsLocation", new Vector3f()));
        setPhysicsRotation(((Matrix3f) capsule.readSavable("physicsRotation", new Matrix3f())));
        setCcdMotionThreshold(capsule.readFloat("ccdMotionThreshold", 0));
        setCcdSweptSphereRadius(capsule.readFloat("ccdSweptSphereRadius", 0));
    }
@param index The index of the overlapping Node to retrieve.
@return The Overlapping CollisionObject at the given index.
jme3-jbullet/src/main/java/com/jme3/bullet/objects/PhysicsGhostObject.java