RFR: 8332457: Examine startup overheads from JDK-8294961 [v12]

[Chen Liang]

On Wed, 29 May 2024 07:17:38 GMT, Adam Sotona <asotona at openjdk.org> wrote:

>> [JDK-8294961](https://bugs.openjdk.org/browse/JDK-8294961) changed to use classfile API for reflection proxy-generation. Actual implementation of `ProxyGenerator` is focused on performance, however it causes JDK bootstrap regressions. `ProxyGenerator.TEMPLATE` class model is statically created and each proxy class is transformed from the template.
>> 
>> This patch is intended to examine plain proxy generation impact on performance and JDK bootstrap (vs proxy transformation from template).
>> 
>> The generated proxy is migrated from static initialization to CONDY bootstrap.
>> 
>> Please review.
>> 
>> Thank you,
>> Adam
>
> Adam Sotona has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 13 additional commits since the last revision:
> 
>  - obsolete import
>  - Merge branch 'master' into JDK-8332457-proxy-startup
>  - missing bracket
>  - Update src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java
>    
>    Co-authored-by: liach <7806504+liach at users.noreply.github.com>
>  - removed obsolete entry
>  - MTD_ cleanup
>  - fixed javadoc
>  - CONDY implementation of ProxyGenerator
>  - simplification of the proxy class loading
>  - more improvements
>  - ... and 3 more: https://git.openjdk.org/jdk/compare/19d52556...942342d5

Marked as reviewed by liach (Author).

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

PR Review: https://git.openjdk.org/jdk/pull/19410#pullrequestreview-2085154590