Does anywone know a good profiler for call stack and thread in the same time. maybe something that can be slowed down to really see whats happening on those threads, waits on objects, synchronized metods and so on..
Try VisualVM - it is free and rich-featured. But not as much as JProfiler - greates Java profiler tool! It can do everything you can imagine with your code and VM (and things you cannot imagine too). But it costs 499$.