@Override
        public Batch jmeClone() {
            try {
                return (Batch) super.clone();
            } catch (CloneNotSupportedException ex) {
                throw new AssertionError();
            }
        }
update the batchesByGeom map for this batch with the given List of geometries

@param list
jme3-core/src/main/java/com/jme3/scene/BatchNode.java