I think it is pretty clear I am referring to the green arrows as an sort of abstraction thing, and not the grey boxes that is the lists and maps etc.
Okay, I see you don't understand the diagram at all. If it is a library like Utility Library, or Math Library, that can be used anywhere and don't rely on anything else, the arrows don't point anywhere, they end just outside their yellow box.
Arrows that extend from one yellow box to another, mean those boxes rely on them. For instance Job Manager needs System Utilities.
If you don't understand something, its better to ask how it works, than to say there is something wrong with it.
I see Eric L. explained it above, better than I did.