Request for review (S): 6865265 JVM crashes with "missing exception handler" error

Vladimir Kozlov vladimir.kozlov at
Mon Jul 25 11:19:32 PDT 2011

Resending to all.

Keith McGuigan wrote:
> I think the code looks ok, but why not use a Handle for the 
> "original_exception" in runtime.cpp -- then you don't need to worry 
> about the GC case either.
> As to the question about the verifier comparing by name, this is correct 
> (in that this is what the verifier spec requires, IIRC), but intuitively 
> it makes sense anyway because the class's current class loader is the 
> initiating loader for any referenced class that might need to be 
> loaded.  Thus two different references to classes with the same name 
> will always resolve to the same class implementation so a system 
> dictionary lookup is unnecessary.  The verifier actively attempts to NOT 
> load or initialize classes when it can, but in some cases it must, 
> unfortunately.
> -- 
> - Keith
> On Jul 25, 2011, at 1:14 PM, Vladimir Kozlov wrote:
>> Forwarding to RT since runtime code is also involved.
>> Vladimir
>> -------- Original Message --------
>> Subject: Request for review (S): 6865265 JVM crashes with "missing 
>> exception handler" error
>> Date: Mon, 25 Jul 2011 18:58:58 +0200
>> From: Volker Simonis <volker.simonis at>
>> To: hotspot compiler <hotspot-compiler-dev at>
>> Although I've found a tiny test case for 6865265 and a small fix for
>> the problem, I'm still not sure if my fix is complete.
>> I would appreciate it very much if somebody could review my (somewhat
>> lengthy) explanation for the fix and answer the two questions I
>> encountered.
>> Both, the explanation of the fix and the questions are in the webrev at:
>> Regards,
>> Volker

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