RFR 8152645 VarHandle lookup access control tests

[Michael Haupt]

Hi Paul,

note this is a lower-case review. Thumbs up.

I like how the test lucidly documents the access rules, and would applaud an extended test that additionally covers module boundaries.

Just as a suggestion, how about using the fact that enum values are technically instances of subclasses of the enum and getting rid of the switches in FieldLookup.lookup/isAccessibleField by replacing the two with overridden methods in each of the enum elements? Switching over "this" just calls for polymorphism, and the default cases are dead code. Admittedly, it's a matter of style. :-)

Best,

Michael

> Am 07.04.2016 um 11:07 schrieb Paul Sandoz <paul.sandoz at oracle.com>:
> 
> Hi,
> 
> Please review a test to verify access control of looking up fields using a VarHandle:
> 
>  http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8152645-VH-access-control/webrev/ <http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8152645-VH-access-control/webrev/>
> 
> For completeness i also added tests for MH as i could not find any such existing tests.
> 
> 
> Further follow on work might be to test lookup to fields across module boundaries.
> 
> Paul.

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