RFR: 8264774: Implementation of Foreign Function and Memory API (Incubator) [v3]

[Maurizio Cimadamore]

On Thu, 29 Apr 2021 18:18:00 GMT, Mandy Chung <mchung at openjdk.org> wrote:

> I think the implementation does not support that. I will also need to look into how this impacts JDK-8266010. As I suggest earlier, I'm fine to do this as a follow up after integration.

I've added `@CS` in the interface methods too. I've also added a stronger test which creates method handles in one module (which doesn't have native access) and then calls them from another module (which does NOT have native access enabled), and make sure that all call fails as expected (e.g. that caller context is that of the lookup module).

Surprisingly, CheckCSMs does NOT fail if both interface and implementation methods are `@CS` annotated - but if only interface is annotated, the test fails. This seems odd - since I can't find any logic in the test which check for overriding. Is the test accidentally passing?

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PR: https://git.openjdk.java.net/jdk/pull/3699