OpenZFS is storage software which combines the functionality of traditional filesystems, volume manager, and more. OpenZFS includes protection against data corruption, support for high storage capacities, efficient data compression, snapshots and copy-on-write clones, continuous integrity checking and automatic repair, remote replication with ZFS send and receive, and RAID-Z.
Pure Java library to manage Subversion working copies and repositories
Java library of lightweight mathematics and statistics components
AutoFDO uses sampling based profile to drive feedback directed optimizations.