Currently two styles of line indentation are used in the API: in some cases whitespaces and in others tab characters. Especially when using both styles in one file (e.g. EntityManager.java) that's quite inconvinient for readers who use a different tab rendering than four characters. Thus I think one style should be used, my preference being whitespace.
If you think this makes sense feel free to assign the issue to me.
It should consistently be tabs.
Ok; I knew you'd say that