@Override
    @SuppressWarnings("unchecked")
    public void read(JmeImporter im) throws IOException {
        super.read(im);
        InputCapsule capsule = im.getCapsule(this);
        children = capsule.readSavableArrayList("children", new ArrayList<ChildCollisionShape>());
        cShape.setLocalScaling(Converter.convert(getScale()));
        cShape.setMargin(margin);
        loadChildren();
    }
WARNING - CompoundCollisionShape scaling has no effect.
jme3-jbullet/src/main/java/com/jme3/bullet/collision/shapes/CompoundCollisionShape.java