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From "Anton Luht" <anton.l...@gmail.com>
Subject Re: [drlvm] HARMONY-956 - problem w/ DRLVM classloader
Date Mon, 07 Aug 2006 17:22:53 GMT
Hello,

The problem is with verifier.

The code in Verifier.cpp:

        if( ( start_pc >= len ) || ( end_pc >= len ) || ( handler_pc >= len ) )
...

            result = VER_ErrorHandler;

I've modified error logging a bit to log values of start_pc, end_pc,
handler_pc and len and that's the output:


Loading message broker from: xbean:activemq.xml
vf_debug: VerifyError: (class: edu/emory/mathcs/backport/java/util/concurrent/lo
cks/ReentrantLock$NonfairSync, method: lockInterruptibly()V, len: 103, start_pc:
 87, end_pc: 103, handler_pc: 21) Handler pc is out of range
vf_debug: verifying class edu/emory/mathcs/backport/java/util/concurrent/locks/R
eentrantLock (method <init>()V) couldn't load class "edu/emory/mathcs/backport/j
ava/util/concurrent/locks/ReentrantLock$NonfairSync"
vf_debug: VerifyError: edu/emory/mathcs/backport/java/util/concurrent/locks/Reen
trantLock$NonfairSync
Failed to execute main task. Reason: java.lang.NoClassDefFoundError: edu/emory/m
athcs/backport/java/util/concurrent/locks/ReentrantLock$NonfairSync

I'm not an expert in verification but seems like

end_pc >= len
should be replaced with
end_pc > len



On 8/5/06, Geir Magnusson Jr <geir@pobox.com> wrote:
> Anyone interested? :)
>
> geir
>
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-- 
Regards,
Anton Luht,
Intel Middleware Products Division

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