On Fri, 11 Oct 2024 18:02:40 GMT, Chen Liang <li...@openjdk.org> wrote:

>> Please review this change that adds a new dynamic proxies implementation as 
>> hidden classes.
>> 
>> Summary:
>> 1. Adds new implementation which can be `-Djdk.reflect.useHiddenProxy=true` 
>> for early adoption.
>> 2. ClassLoader.defineClass0 takes a ClassLoader instance but discards it in 
>> native code; I updated native code to reuse that ClassLoader for Proxy 
>> support.
>> 3. ProxyGenerator changes mainly involve using Class data to pass Method 
>> list (accessed in a single condy) and removal of obsolete setup code 
>> generation.
>> 
>> Comment: Since #8278, Proxy has been converted to ClassFile API, and 
>> infrastructure has changed; now, the migration to hidden classes is much 
>> cleaner and has less impact, such as preserving ProtectionDomain and dynamic 
>> module without "anchor classes", and avoiding java.lang.invoke package.
>
> Chen Liang has updated the pull request with a new target base due to a merge 
> or a rebase. The pull request now contains 13 commits:
> 
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> feature/hidden-proxy
>  - Flip flags, hidden is enabled only by choice
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> feature/hidden-proxy
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> feature/hidden-proxy
>    
>    # Conflicts:
>    #  src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
>  - Missing changes to commit
>  - Condense legacy and modern impl
>  - Clean up
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> feature/hidden-proxy
>  - Cleanup...
>  - Merge branch 'master' of https://github.com/openjdk/jdk into 
> feature/hidden-proxy
>    
>    # Conflicts:
>    #  src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
>  - ... and 3 more: https://git.openjdk.org/jdk/compare/7276a1be...2cc88f2b

Updated to merge latest master. It seems the hidden class implementation passes 
existing serialization tests.

-------------

PR Comment: https://git.openjdk.org/jdk/pull/19356#issuecomment-2407902076

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