LIXA, LIbre XA, is a free and open source XA transaction manager
Testsuite to validate the reliability, robustness, stability of Linux.
Open source C and C++ library for accessing Oracle Databases
ss7mon an SS7/SIGTRAN signalling monitor
vMotion Detector for Linux & Windows Platforms
Apache Cayenne, Wicket, CXF, GWT, EJB examples as a framework