I've been in contact with quite a few people recently regarding upcoming conferences (see the java.net Events Calendar for near-term events). There are major conferences and events that will take place in the next few months around the world.
It seems to me that, in terms of conferences, Java is spreading out across the world, compared with what was the case just a few years ago. We no longer have just one big annual conference in North America (JavaOne, obviously) and one big annual conference in Europe (DEVOXX, I think, has filled that role in recent years). These haven't gone away, of course; but they are now joined by many smaller conferences, summits, etc. And these smaller conferences seem to be on a strong upward growth path. For example, Jfokus was the venue selected for announcing Java Champions Rickard