> To start with you would be better looking here
> https://github.com/pgjdbc/pgjdbc for the code. And the number of
> commits.
Last commit is 3 months old, and then about 3 commits per month.
https://github.com/pgjdbc/pgjdbc/commits/master
For example of live project look here:
https://github.com/apache/lucene-solr/commits/trunk