[15] RFR 8247246: Add explicit ResolvedJavaType.link and expose presence of default methods

[Tom Rodriguez]

Thanks!

tom

Vladimir Kozlov wrote on 6/23/20 3:02 PM:
> Looks good.
> 
> Thanks,
> Vladimir
> 
> On 6/23/20 1:46 PM, Tom Rodriguez wrote:
>> http://cr.openjdk.java.net/~never/8247246/webrev
>> https://bugs.openjdk.java.net/browse/JDK-8247246
>>
>> This adds a couple operations the JVMCI that are necessary for 
>> interacting with classes that aren't linked. ResolvedJavaType.link 
>> explicitly attempts linking if the current class isn't linked. 
>> ResolvedJavaType.getDeclaredMethods and getDeclaredConstructors both 
>> force linking as part of their implementation though this is more 
>> historical than necessary though there is code which relies on this 
>> behavioiur to force linking.  Additionally there's currently no way of 
>> identifying class and interface which default other than by visiting 
>> all the methods of the clases, so hasDefaultMethods and 
>> declaresDefaultMethods have been added to expose this without forcing 
>> linking.  Mach5 testing is clean and includes unit tests which 
>> exercise the new API.