[moonchild]

> Does not have manual memory management

That is a misunderstanding.

If you would like to avoid pauses in c, you must be careful about how you allocate, what you put where, &c; you cannot simply use malloc and free. Similarly, if you would like to avoid pauses in a gc language, you must be careful about how you allocate, what you put where, &c; you cannot simply allocate.

These techniques are actionable in any language. Java 'has' automatic memory management, but it also 'has' manual memory management (if you implement it).

[voidnullnil]

Not without relying on implementation details.

[moonchild]

? no

In almost any language with automatic memory management, I can portably make my own freelists, regions, temporary (reused) buffers, ...