RFR: 8200238: Reduce number of exceptions created when calling MemberName$Factory::resolveOrNull

[David Holmes]

Hi Claes,

This seems reasonable. Clearing the exception only when speculatively 
resolving is reasonable (it's similar to compilation clearing exceptions 
and falling back to interpreted mode).

Thanks,
David

On 27/03/2018 4:49 PM, Claes Redestad wrote:
> 
> 
> On 2018-03-26 17:51, Claes Redestad wrote:
>> Karen,
>>
>> On 2018-03-26 17:15, Karen Kinnear wrote:
>>> Claes,
>>>
>>> Discussed with Lois. We think that it would make more sense to pass 
>>> the new argument into MethodHandles::resolve_MemberName and at all 
>>> three places that we currently CHECK_PENDING_EXCEPTION/return null there
>>>     - if speculative flag is set - CLEAR_PENDING_EXCEPTION before you 
>>> return null
>>>     - and yes - do this for all three cases, not just the METHOD case
>>
>> ok.
> 
> New webrev:
> 
> http://cr.openjdk.java.net/~redestad/8200238/open.01/
> 
> Thanks!
> 
> /Claes