Isn't this what the AutoCloseable interface (combined with try-with-resources statements) addresses for everything except memory? It wasn't added until Java 1.7, though, so maybe the article predates that feature.

https://docs.oracle.com/javase/tutorial/essential/exceptions...

...basically it's the same as .NET dispose pattern for achieving deterministic cleanup. Most IDEs and code analysis tools will throw a fit if you don't use an AutoCloseable/IDisposable class properly in a try-with-resources/using statement.