Java code layout settings - do we have them documented somewhere?

[Nick Burch]

Hi All

Recently when reviewing some patches from new contributors, we've had some 
confusion over spaces and tabs. For TIKA-1361, I've hit another one - 
explicit imports vs package wide wildcard ones.

Currently, we don't seem to have anything listed on the Contributors page 
to tell people what we expect - http://tika.apache.org/contribute.html - 
so they can't check. I'm happy to add something there, just need to know 
what we've already decided so I know what to list!

For the spaces / tabs one, I've found TIKA-44 which concludes that we 
should be using 4 spaces. Anything similar out there for imports?

Thanks
Nick