RFR (M) 8155951: VM crash in nsk/jvmti/RedefineClasses/StressRedefine: assert failed: Corrupted constant pool

[Coleen Phillimore]

Serguei,

Thank you so much for the quick code review.   And for the idea of how 
to lock class redefinition.

Coleen


On 5/12/16 4:21 PM, serguei.spitsyn at oracle.com wrote:
> Hi Coleen,
>
> Great fix.
> Thank you a lot for finding the root causes of these issues!
>
> Thanks,
> Serguei
>
>
> On 5/12/16 11:14, Coleen Phillimore wrote:
>> 8151066: assert(0 <= i && i < length()) failed: index out of bounds
>> Summary: lock classes for redefinition because constant pool merging 
>> isn't thread safe, use method constant pool because constant pool 
>> merging doesn't make equivalent cpCaches because of invokedynamic
>>
>> I had to make these changes together.   See bugs for more details.
>>
>> open webrev at http://cr.openjdk.java.net/~coleenp/8155951/webrev
>> bug link https://bugs.openjdk.java.net/browse/JDK-8155951
>> bug link https://bugs.openjdk.java.net/browse/JDK-8151066
>>
>> Tested with rbt nightly test and 24 hours with StressRedefine test.
>>
>> Thanks,
>> Coleen
>>
>>
>>
>