@Override
    public void write(JmeExporter e) throws IOException {
        super.write(e);
        final OutputCapsule capsule = e.getCapsule(this);
        capsule.write(rectangle, "rectangle", new Rectangle(
                new Vector3f(),
                new Vector3f(1, 0, 0),
                new Vector3f(0, 1, 0)));
        capsule.write(texCoords, "texCoords", new Vector2f[] {
                new Vector2f(0, 0),
                new Vector2f(1, 0),
                new Vector2f(1, 1),
                new Vector2f(0, 1)
        });
        capsule.write(normal, "normal", null);
        capsule.write(flipped, "flipped", false);
    }
Called internally by com.jme3.util.clone.Cloner. Do not call directly.
jme3-core/src/main/java/com/jme3/scene/shape/RectangleMesh.java