// 'plot' : just retain reference, not a deep copy
if (this.itemLabelGenerator != null
&& this.itemLabelGenerator instanceof PublicCloneable) {
PublicCloneable pc = (PublicCloneable) this.itemLabelGenerator;
clone.itemLabelGenerator = (XYItemLabelGenerator) pc.clone();
}
clone.itemLabelGeneratorList
= (ObjectList) this.itemLabelGeneratorList.clone();
if (this.baseItemLabelGenerator != null
&& this.baseItemLabelGenerator instanceof PublicCloneable) {