On 10/22/2019 11:03 AM, Claes Redestad wrote:


On 2019-10-22 15:55, David Holmes wrote:
With your change interface I's registerNatives default method is invoked successfully.  I don't think this is a major backward compatibilty issue but we should have someone from core-libs okay the removal of the method from Object before committing.  In addition, can you add this test as part of your change?  I think it would be okay to put it in open/test/hotspot/jtreg/runtime/8024804 which contains an existing registerNatives test.

Yeah, *not* throwing an IAE on this feels like an unintentional bug fix.
:-)

Yes it is a somewhat surprising aspect of default method resolution, but methods in the class hierarchy must be considered ahead of any default method - even inaccessible ones.

We're relaxing a very subtle interaction, so I think compatibility
issues with existing code is non-existing.

I don't think there is a compatibility issue here because we don't in general have to maintain error compatibility. However as it is a change in behaviour it does warrant a CSR request just so the compatibility argument is captured/recorded.


Filed and drafted a CSR: https://bugs.openjdk.java.net/browse/JDK-8232801

Hi Claes,

You have my review for webrev .03.  Thanks for adding the test case.  I agree with David that a CSR is warranted.  Only minor comment I have on it is that in a couple of places you use "IllegalArgumentError" instead of "IllegalAccessError".

Thanks,
Lois



Thanks!

/Claes

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