forClass scares me

Especially for vendor spesific classes. I mean jesus christ, how am I
supposed to inforce the use of sun distributed java. (In other words,
this might not work on mac) If it's a big problem by all means go ahead
and fix it however I don't own a mac so I won't be able to test it. The
class that might cause the problem is
net.themuteone.fence.database.DatabaseQuery

Also, general cleanup and a couple of clarity comments.