RFR: 8376125: Out of memory in the CDS archive error with lot of classes [v9]

[Xue-Lei Andrew Fan]

On Tue, 17 Feb 2026 07:37:52 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> Xue-Lei Andrew Fan has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   miss update for FileMapInfo
>
> src/hotspot/share/cds/archiveBuilder.cpp line 327:
> 
>> 325:   // On 32-bit: use 256MB + AOT code size due to limited virtual address space.
>> 326:   size_t buffer_size = LP64_ONLY(AOTCompressedPointers::MaxMetadataOffsetBytes)
>> 327:                        NOT_LP64(256 * M + AOTCodeCache::max_aot_code_size());
> 
> When `CompactObjectHeaders` are enabled, we should reserve a smaller size to avoid assertion.

The AOTCompressedPointers::MaxMetadataOffsetBytes now is set to 3.5GB.  I think the size is OK if CompactObjectHeaders is enabled.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29494#discussion_r2819143642