The same issues with locking and memory barriers while multithreading will appear regardless of language. That said, I agree that it is strange to see that the

The same issues with locking and memory barriers while multithreading will appear regardless of language. That said, I agree that it is strange to see that they keep using Java for the main loop if they don't allow for garbage collection during operation. If they had used C for the main loop, the worker threads for the business logic could have been restarted on the fly.