I've been using G1 for quite a long now and it doesn't do a major stop the world GC, unless in some very extreme theoretical situations I've never encountered y

I've been using G1 for quite a long now and it doesn't do a major stop the world GC, unless in some very extreme theoretical situations I've never encountered yet. However sub-10-millisecond pause targets are still a challenge, but there is a lot of progress in this area still being made.