What is best practice for garbage collection in non trivial or critical systems in java?

Question

This Ciriculum does not discuss garbage collection or deconstructors in java. I realize that this is performed implicitly however I have seen bad software in business world that requires 4x recommended memory. What is considered best practices for non trivial garbage collection?

Answer 1

I don't know the answer but I'd like to second this question. Also curious because I read on stackexchange that directly trying to free memory by deleting objects is considered very bad practice.

Answer 2

Just like you said the developers have made their intent clear and have barred direct access to memory manipulating. Even if that's the case I don't need a Ph.D to clean up old objects and memory manipulating is really only dangerous in recursion, at least in critical systems but I digress.

Is there another way to control life cycles with Java? Perhaps using threads?