RFR: 8035746: Add missing Klass::oop_is_instanceClassLoader() function
coleen.phillimore at oracle.com
Wed Feb 26 11:38:48 PST 2014
On 2/25/2014 12:50 PM, Stefan Karlsson wrote:
> On 2014-02-25 15:15, Mikael Gerdin wrote:
>> Hi Stefan,
>> On Tuesday 25 February 2014 14.43.49 Stefan Karlsson wrote:
>>> Hi all,
>>> Please, review this small patch to add
>> Code change looks good.
>> There are a couple of places where we check whether or not a Klass is a
>> ClassLoader, something like:
>> if (klass->is_subclass_of(SystemDictionary::ClassLoader_klass()))
>> These places could now be changed to
>> klass->oop_is_ClassLoader(), saving a possibly expensive subtype check.
>> Should we file an RFE to change these or do you want to change them
> I'd prefer a separate RFE.
This change looks good. I assume this is actually for G1 class
unloading. Too bad though I wish you'd change it all in one pass.
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