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List:       openjdk-hotspot-runtime-dev
Subject:    Integrated: 8290739: Simplify storage of dump-time class information
From:       Ioi Lam <iklam () openjdk ! org>
Date:       2022-07-27 23:55:07
Message-ID: P16s44EsfY-fu5vb1u2YJMT8QQuMAkVfG6bnSPLmdZ8=.c62bc1ff-b4c6-476a-8f1e-af96855cbe85 () github ! com
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On Mon, 25 Jul 2022 22:06:51 GMT, Ioi Lam <iklam@openjdk.org> wrote:

> Some code clean up in anticipation of future CDS development.
> 
> I moved the initialization of `SystemDictionaryShared::_dumptime_table` and \
> `SystemDictionaryShared::_dumptime_lambda_proxy_class_dictionary` to VM bootstrap, \
>                 so that:
> - We don't need to allocate these tables dynamically
> - We don't need to check if these tables exist when writing the archive
> 
> The current implementation guarantees that \
> `SystemDictionaryShared::_dumptime_table` always contains a `DumpTimeClassInfo` for \
> each `InstanceKlass` that's being considered for inclusion in the CDS archive. I \
> simplified the old `SystemDictionaryShared::find_or_allocate_info_for()` API to 
> 
> // Guaranteed to return non-NULL value for non-shared classes.
> // k must not be a shared class.
> DumpTimeClassInfo* SystemDictionaryShared::get_info(InstanceKlass* k)
> 
> 
> For more details, please see JBS issue: \
> [JDK-8290739](https://bugs.openjdk.org/browse/JDK-8290739)

This pull request has now been integrated.

Changeset: bc6a3c7b
Author:    Ioi Lam <iklam@openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/bc6a3c7b833cb88b624f1d18877edc4f31102a48
                
Stats:     174 lines in 8 files changed: 26 ins; 55 del; 93 mod

8290739: Simplify storage of dump-time class information

Reviewed-by: ccheung

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

PR: https://git.openjdk.org/jdk/pull/9634


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