It takes 20 seconds to load the test case class on an ADP1. :( If
anyone has any ideas I'm open to trying things out or giving out the
test case source code to look at. I don't know what Protocol Buffers
does that is causing this, but if I'm not mistaken Protocol Buffers
are used internally by the OS so my thought is that someone somewhere
knows the answer.
On Jul 22, 2:05 pm, Micah <mi...@ourmailbox.net> wrote:
> Unfortunately, this doesn't seem to fully resolve my issue. I have
> created a very simple repro case that causes the stall to occur (let
> me know if anyone wants the source / APK). In the test, it will
> eventually finish but it takes ~10 seconds just to make the call:
>
> Class.forName("com.zoltu.AndroidTest.Messages.Sample")
>
> On the plus side, the sample code isn't deadlocking, but it looks like
> I'll still need to test on a physical device to see if it takes a
> noticeable amount of time there like on the VM.
>
> On Jul 22, 10:49 am, fadden <fad...@android.com> wrote:
>
>
>
> > On Jul 21, 10:56 pm, fadden <fad...@android.com> wrote:
>
> > > 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 got a copy of the APK (thanks!) and poked at it. I believe this is
> > the same bug.
>
> > When the app launch stalled a sent the process a "kill -3" and pulled
> > the stack trace out of /data/anr/traces.txt. The two interesting
> > threads are:
>
> > "main" prio=5 tid=3 WAIT
> > | group="main" sCount=1 dsCount=0 s=N obj=0x4001d520 self=0xbc60
> > | sysTid=1086 nice=0 sched=0/0 handle=-1343996920
> > at java.lang.Class.getDeclaredMethods(Native Method)
> > - waiting on <0x1a8598> (a java.lang.Class)
> > at java.lang.ClassCache.getDeclaredPublicMethods(ClassCache.java:
> > 166)
> > at java.lang.ClassCache.getDeclaredMethods(ClassCache.java:179)
> > at java.lang.ClassCache.findAllMethods(ClassCache.java:249)
> > at java.lang.ClassCache.getFullListOfMethods(ClassCache.java:223)
> > at java.lang.ClassCache.getAllPublicMethods(ClassCache.java:204)
> > at java.lang.Class.getMethod(Class.java:1006)
> > at com.google.protobuf.GeneratedMessage.getMethodOrDie
> > (GeneratedMessage.java:900)
> > ...
>
> > "Graphics" prio=5 tid=19 WAIT
> > | group="main" sCount=1 dsCount=0 s=N obj=0x43748ef8 self=0x1a4878
> > | sysTid=1094 nice=0 sched=0/0 handle=1722776
> > at com.ZZZ.Level$Map.<clinit>(Level.java:~1978)
> > - waiting on <0x146768> (a java.lang.Class)
> > at com.ZZZ.Level$LoadedAnnouncement.<init>(Level.java:-1)
> > at com.ZZZ.Level$LoadedAnnouncement.<clinit>(Level.java:2586)
> > at java.lang.Class.getDeclaredMethods(Native Method)
> > at java.lang.ClassCache.getDeclaredPublicMethods(ClassCache.java:
> > 166)
> > ...
>
> > The're both under getDeclaredMethods, and they're both waiting on a
> > Class object monitor (but not the same class). The Graphics thread is
> > doing a couple layers of class initialization that it shouldn't be
> > doing at that point. It's possible we've deadlocked on class init.
>
> > I tried it twice and ended up in the exact same place both times.
> > With the bug fix in place it started up every time.
>
> > This problem will go away in a future release, but for now you can
> > work around it by forcing initialization to happen earlier. The
> > easiest way to do this is to call Class.forName(String className)
> > early in the app start sequence. Start with Level$Map and Level
> > $LoadedAnnouncement and see if that cures it.
>
> > For anyone building their own VM, you can see the patch
> > inhttp://code.google.com/p/android/issues/detail?id=3005.
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