@Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("Skeleton - ").append(boneList.length).append(" bones, ").append(rootBones.length).append(" roots\n");
        for (Bone rootBone : rootBones) {
            sb.append(rootBone.toString());
        }
        return sb.toString();
    }
returns the number of bones of this skeleton
@return the count (&ge;0)
jme3-core/src/main/java/com/jme3/animation/Skeleton.java