Maildir in java

I am debating whether or not to create my own maildir implementation in java. I did a bit of searching and came up with a handful of implementations. One of them is on the GNU site so I had to immidiately rule it out. As far as I am concerned the GPL is a bad license. The GPL is designed to take away your freedom to build commercial software.

Came across another one called infodancer, which I immediately downloaded, even before compiling this library I am already beginning to like to because it isn't bloatware. The jarfile that have have seems to have a lots of other things besides just the maildir implementation and it's just 573 kb in size.

The third implementation I looked at was on sourceforge (http://javamaildir.sourceforge.net) and it's just 37 kilobytes just the way it should be.