Monitoring Memory with JRuby, Part 2: Eclipse Memory Analyzer

We can see our old friend TimezoneTransitionInfo in there, but of course we’ve learned to accept that one. But what’s this LeakyController::MyData object we’ve apparently got 10000 instances of? Where are they coming from? Who’s holding on to them? At this point, we can proceed to get a memory dump and move over to MAT, or have MAT acquire and open the dump in one shot, similar to VisualVM. Let’s