On Jul 21, 5:52 pm, Micah <[email protected]> wrote: > All that is in the log is garbage collection being done every so often > (5-10 seconds apart). It appears to be stalling in: > > Class.getDeclaredMethods(Class, boolean) line: not available [native > method] > ClassCache.getDeclaredPublicMethods() line: 166
There is a bug in Class.getDeclaredMethods that has caused a couple of unrelated-looking issues: http://code.google.com/p/android/issues/detail?id=3005 http://code.google.com/p/android/issues/detail?id=2812 The bug is that, while generating the list of declared methods, the VM would initialize classes found in method arguments. Those classes shouldn't be getting initialized at that point, and initialization ordering problems ensue. I'm not sure why it would get stuck there. (I'm trying to picture if it's possible to deadlock on class init from here.) > One thing of note in the log which may be of interest is: > INFO/dalvikvm(721): WOW: somebody generated [Lcom/google/protobuf/ > Descriptors$FileDescriptor; simultaneously That means two different threads tried to create the same array class at the same time. One won, one lost. It gets a "WOW" log message because it's extremely rare, which means the code is rarely exercised and hence more likely to break. Array classes are essentially created and initialized in one shot, on demand, so I don't think the race is related to the getDeclaredMethods bug. But if you're seeing the WOW every time, then something a little peculiar is happening to make the race condition that reliable. If you have an APK that exhibits this problem repeatably, I'd be interested in seeing if I can make it stall as well. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
