RFR 8152295: Redundant CLCs for classes resolved in both loaders

[harold seigel]

Thanks Lois for the review!

Harold


On 5/16/2017 1:59 PM, Lois Foltan wrote:
> Looks good.  Minor nit, the two if statements on line #192 could be 
> collapsed into one, something like "if (klass1 == klass2 && klass1 != 
> NULL)"
> Lois
>
> On 5/16/2017 1:10 PM, harold seigel wrote:
>> Hi,
>>
>> Please review this JDK-10 change to not record loader constraints if 
>> both class loader classes are the same.  This change reduces the 
>> number of recorded loader constraints when running the Queens program 
>> from six to four.  It reduces the number of recorded loader 
>> constraints when running javac to compile Queens.java from 110 to 55.
>>
>> Additionally, the logging code for LaderConstraintTable::add_entry() 
>> was restructured to simplify things and improve readability.
>>
>> Open Webrev: http://cr.openjdk.java.net/~hseigel/bug_8152295/webrev/
>>
>> JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8152295
>>
>> The fix was tested with JCK Lang and VM tests, the JTreg hotspot, 
>> java/io, java/lang, java/util and other tests, the co-located NSK 
>> tests, RBT tests, and with JPRT.
>>
>> Thanks, Harold
>>
>