@Override
    public void cloneFields(Cloner cloner, Object original) {
        this.rootJoints = cloner.clone(rootJoints);
        this.jointList = cloner.clone(jointList);
        this.skinningMatrixes = cloner.clone(skinningMatrixes);
        for (Joint joint : jointList) {
            instantiateJointModelTransform(joint);
        }
    }
returns the number of joints of this armature

@return the count (&ge;0)
jme3-core/src/main/java/com/jme3/anim/Armature.java