RFR: 8299505: findVirtual on array classes incorrectly restricts the receiver type

[Mandy Chung]

On Tue, 30 May 2023 23:38:16 GMT, Mandy Chung <mchung at openjdk.org> wrote:

>> The access hack for array class clone is only applied to `checkAccess` but missing before call to `restrictProtectedReceiver`, causing the array receiver type to be incorrectly replaced by the lookupClass type. This patch fixes that and adds a test to ensure an original lookup resolves `clone` for both array classes (public) and Object (inherited protected) correctly, and restores the old MethodHandlesGeneralTest from [JDK-8001105](https://bugs.openjdk.org/browse/JDK-8001105) which ensures correctness for publicLookup (which is already correct).
>
> test/jdk/java/lang/invoke/findVirtual/FindVirtualArrayCloneTest.java line 28:
> 
>> 26:  * @bug 8299505
>> 27:  * @run junit FindVirtualArrayCloneTest
>> 28:  * @summary Ensures Arrays' clone doesn't have incorrect receiver type bound
> 
> Suggestion:
> 
>  * @summary Test invocation of Object.clone for arrays

Can you add test cases to verify that the invocation of `Object.clone` returns an array object with correct content for completeness?

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PR Review Comment: https://git.openjdk.org/jdk/pull/13855#discussion_r1210936985