All our products, including CoralSequencer, which is a full-fledged multicast message middleware used by some of the largest investment banks and market makers, are all zero garbage. We say that to make the point that garbage-free Java applications are not only possible but heavily used by leading financial institutions which cannot afford any latency through GC pauses.
We have a video where we go in detail about how garbage-free Java applications can be developed, with an example.
We also provide several open-source garbage-free applications through our Github page.