private String getToLabel(Reference ref) {
		if (cu == null) {
			return null;
		}
		return cuFormat.getReferenceRepresentationString(cu, ref);
	}
@see javax.swing.table.AbstractTableModel#setValueAt(java.lang.Object,
     int, int)
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/references/EditReferencesModel.java