@Override
    protected void doUpdateGeometryIndices() {
        if (getBuffer(Type.Index) == null){
            setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(GEOMETRY_INDICES_DATA));
        }
    }
Creates a clone of this box.
<p>
The cloned box will have '_clone' appended to its name, but all other
properties will be the same as this box.
jme3-core/src/main/java/com/jme3/scene/shape/Box.java