Add a line break between annotated fields

[xvrh]

The last version of the formatter puts each attribute on his own line, this is great.
I would like it adds some empty line between the annotated fields to be a bit more clear.
i.e.:

@myAttribute
String aVariable1;
@myAttribute
String aVariable2;
String aVariable3;

becomes

@myAttribute
String aVariable1;

@myAttribute
String aVariable2;

String aVariable3;

[zoechi]

I also find it very hard to read without additional line breaks.

[munificent]

I'd like it to force them too, but it's a little tricky to implement so I haven't yet. In the meantime, if you add blank lines yourself there, it should preserve them.