@Override
    public Object jmeClone() {
        try {
            return super.clone();
        } catch (CloneNotSupportedException e) {
            throw new RuntimeException("Error cloning", e);
        }
    }
Create a shallow clone for the JME cloner.

@return a new instance
jme3-core/src/main/java/com/jme3/anim/AnimClip.java