This repository is a teaching resource. It contains reference implementations of the twenty-three Gang of Four design patterns and is not published as a package, nor is it intended to be deployed as a service.

That said, code is read and copied, so a defect that would teach an unsafe practice is treated as a security issue here. Examples include a broken synchronisation primitive, an unvalidated path, or a resource that is never released.

Only the main branch is supported. Fixes are applied there.

Report a suspected vulnerability privately, using the GitHub Security Advisories page of this repository, or by email to francesco.delre.87[at]gmail.com. Please do not open a public issue for a security report.

Include the affected file, a description of the problem, and, where possible, the conditions needed to reproduce it.

You can expect an acknowledgement within seven days, and an assessment within thirty days.