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From Joe Bohn <joe.b...@earthlink.net>
Subject Re: Does bin/start-server work anymore?
Date Fri, 16 Nov 2007 16:14:06 GMT

Kevan Miller wrote:
> 
> On Nov 14, 2007, at 12:54 AM, Jason Dillon wrote:
> 
>> I just tried to boot up the server today (trunk) and it just appears 
>> to hang after:
>>
>> Booting Geronimo Kernel (in Java 1.5.0_13)...
>>
>> And then eventually times out.
>>
>> Anyone know what is going on?  I have a few changes to the GShell 
>> integration, but I don't really like to commit them when w/o my 
>> changes it doesn't work.
>>
>> :-(
> 
> Hmmm. Can you grab a stack trace while it's timing out? kill -3 <java-pid>
> 
> My trunk build is a bit dated, but starts fine for me...
> 
> I've had problems on my Mac with G 2.0.2 and the Leopard 1.5 JSE. 
> There's a deadlock during startup between main thread and the finalizer 
> thread involving the OpenJPA javaagent. We worked around this problem 
> once before. I'm not sure what changed between 2.0.1 and 2.0.2 to cause 
> the problem. I tried a simple work-around, but didn't work... I haven't 
> had much time to dig any further...
> 

The server hangs occasionally on me with trunk on Tiger 10.4.10 when 
starting the server via "bin/geronimo.sh run".  I can't explain it, but 
it seems to happen most consistently on an image that I just built and 
expanded from the zip for the first time.  I haven't tried 
"bin/start-server.sh" but I'll give it a shot.

My hang using bin/geronimo.sh run is also a hang between main thread and 
the finalizer thread but seems to involve TransformerCollection rather 
than OpenJPA javaagent.

Here are the details:
Found one Java-level deadlock:
=============================
"Finalizer":
   waiting to lock monitor 0x01807ab8 (object 0x06a740e8, a 
sun.misc.Launcher$AppClassLoader),
   which is held by "main"
"main":
   waiting to lock monitor 0x01807a28 (object 0x0a584ae8, a [[I),
   which is held by "Finalizer"

Java stack information for the threads listed above:
===================================================
"Finalizer":
         at 
org.apache.geronimo.transformer.TransformerCollection.transform(TransformerCollection.java:35)
         at 
sun.instrument.TransformerManager.transform(TransformerManager.java:122)
         at 
sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:155)
         at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:82)
         at java.lang.ref.Finalizer.access$100(Finalizer.java:14)
         at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:160)
"main":
         at java.lang.ClassLoader.findBootstrapClass(Native Method)
         at java.lang.ClassLoader.findBootstrapClass0(ClassLoader.java:891)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:301)
         - locked <0x06a76398> (a sun.misc.Launcher$ExtClassLoader)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:299)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)
         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)
         at java.lang.ClassLoader.defineClass1(Native Method)
         at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
         at 
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
         at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
         at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
         at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
         at java.security.AccessController.doPrivileged(Native Method)
         at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)
         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)
         at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
         - locked <0x06a740e8> (a sun.misc.Launcher$AppClassLoader)

Found 1 deadlock.

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