We must add junit based regression tests to the Maven build. I think the simplest way to do this is to turn the current examples into JUnit tests and then use the maven-failsafe-plugin to establish an integration test suite that essentially:

1. Drops existing test-database
2. Creates a new test-database
3. Installs PL/Java into the new test-database
4. Installs test functions into the new test-database
5. Runs the JUnit tests