RFR: 8333854: IllegalAccessError with proxies after JDK-8332457 [v2]

[Claes Redestad]

On Mon, 10 Jun 2024 04:08:41 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Please review this patch that fixes a critical issue that breaks some Proxy usages.
>> 
>> CONSTANT_Class and CONSTANT_MethodType must fail resolution for inaccessible package-private types per JVMS 5.4.3.1 and 5.4.3.5, yet such types can appear in method descriptors in the same class. The proposed way to bypass is to store the MethodType as its descriptor string in the bootstrap method arguments, and use MethodType.fromMethodDescriptorString to restore the arguments, which does not have this restriction and does not eagerly load the parameter classes. This case isn't covered by existing tests, so a new test has been added.
>
> Chen Liang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Obtain classloader in security manager friendly code path

Original code did all the classloading in the `<clinit>` - should we do that here, too?

Can you explain the need to `getPlatformClassLoader` when `classEntry.getClassLoader == null`? Pre-JDK-8332457 did no such thing.

I'll park #19598 until this stabilizes.

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PR Comment: https://git.openjdk.org/jdk/pull/19615#issuecomment-2158189721