private void buildSortedDataTypeList() {
		if (sortedDataTypes != null) {
			return;
		}
		List<DataType> list = new ArrayList<>();
		popuplateDataTypeList(list, root);
		Collections.sort(list, nameComparator);
		sortedDataTypes = list;
	}
This method should be invoked following an undo/redo or a transaction rollback situation.
This will notify {@link DataTypeManagerChangeListenerHandler} and its listeners that this 
manager has just been restored (e.g., undo/redo/rollback).
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/data/DataTypeManagerDB.java