This document discusses implementing quality practices on Java projects. It provides tips on API stability, such as using deprecations, CLIRR to track API changes, excluding internal packages from javadocs, and using annotations to mark unstable APIs. It also discusses preventing JAR hell by avoiding duplicate classes at runtime and ensuring correct dependency versions. The document recommends using Jacoco to enforce test coverage thresholds and failing the build when not met. It suggests strategies for improving functional test stability, such as ignoring known failure cases. Finally, it proposes designating regular bug fixing days to focus on resolving existing issues.