RFR (XS) 8057845: ClassVerifier::verify_exception_handler_targets reconstructs the ExceptionTable in a loop

harold seigel harold.seigel at oracle.com
Thu Sep 18 18:47:41 UTC 2014


Hi Jiangli,

Thanks for the review!

Harold
On 9/18/2014 2:47 PM, Jiangli Zhou wrote:
> Hi Harold,
>
> Looks good.
>
> Thanks,
> Jiangli
>
> On 09/18/2014 11:39 AM, harold seigel wrote:
>> Hi,
>>
>> Please review this small verifier performance improvement for bug 
>> JDK-8057845.  The change stops re-fetching the exception table for 
>> each loop iteration.  The re-fetching is no longer needed because 
>> Method no longer gets moved by gc.  This change noticeably improved 
>> Nashorn class loading.
>>
>> bug:  https://bugs.openjdk.java.net/browse/JDK-8057845
>> Open webrev: http://cr.openjdk.java.net/~hseigel/bug_8057845/
>>
>> The fix was tested with JCK lang, vm, and api/java_lang tests, ute 
>> quick tests, ute split_verifier tests, JPRT, and hotspot JTREG tests.
>>
>> Thanks, Harold
>



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