Building c3p0 should be as easy as editing build.properties and typing ant. Please send any feedback / questions to Steve Waldman
All of the test related properties are very optional. There are various test tasks in the build file, but they are ad-hoc and unsupported. Someday I plan to get with jUnit and do real testing, but that day has not yet come. Until then, you, my dear user, are my primary testing engine. Sorry.