Using this tool the classes corresponding to my code were created.
Each class has attributes with its getter and setter methods.
The attributes are created in the diagram but with the label << Property >> Without the corresponding methods, as you can see from the image.
Moreover, lists are not attributed to the type List , even if I change the association into aggregation.
The label << Property >> tells you precisely an attribute which correspond getter and setter?
I could not find anything about this label in the UML documentation