Cloning this repository:

git clone git://gitorious.org/persistenthashmap/persistenthashmap.git persistenthashmap
cd persistenthashmap

Add this repository as a remote to an existing local repository:

git remote add persistenthashmap git://gitorious.org/persistenthashmap/persistenthashmap.git
git fetch persistenthashmap
git checkout -b my-local-tracking-branch persistenthashmap/master_or_other_branch