How Java dependency resolution actually behaves, and what that means for security in a large estate. Covers the coordinate system and repository lookup path, Maven nearest wins against Gradle highest wins and why one project yields two classpaths, dependency management sections and constraints, exclusions and the safe way to remove a vulnerable transitive module, shaded and relocated archives that hide libraries from manifest scanning, everything that executes during a build, namespace ownership and signatures, mirrors and internal repository shadowing, reproducibility, and a staged upgrade path for a dependency several major versions behind.
Nothing. Every course, exam, and certificate on the catalog is free — including retakes. All you need is a free Safeguard account.
None. The flagship course, Safeguard Certified Practitioner, is a beginner-level course — basic familiarity with how software is built helps, but every exam question is answerable from the lessons themselves.
You can retake it after a 24-hour cooldown, as many times as you need. Retakes are free, and each attempt draws a fresh random set of questions.
The Safeguard Certified Practitioner credential is valid for 24 months from issue. The expiry date is printed on the certificate and shown live on its public verification page. Renewing means passing the current exam again.
