Original Post:
They’ve since moved from Google Code to BitBucket.
Here’s the BitBucket Repo: https://bitbucket.org/xerial/sqlite-jdbc
Update 8-13-2015:
Now they’re off to GitHub: https://github.com/xerial/sqlite-jdbc
I’ve left the bitbucket link because there is a wealth of project information there, even though the code has moved to git hub.