@Override
    public Spline jmeClone() {
        try {
            Spline clone = (Spline) clone();
            return clone;
        } catch (CloneNotSupportedException exception) {
            throw new RuntimeException(exception);
        }
    }
Creates a shallow clone for the JME cloner.

@return a new object
jme3-core/src/main/java/com/jme3/math/Spline.java