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8358686: CDS and AOT can cause buffer truncation warning even when logging is disabled #25866

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@mur47x111 mur47x111 commented Jun 18, 2025

When CDS and AOT loggings are disabled, HotSpot may still warn about Mismatched values for property jdk.module.addexports:. This warn message could be large and exceeds the current logging buffer length, and it leads to a non-informative message:

Java HotSpot(TM) 64-Bit Server VM warning: outputStream::do_vsnprintf output truncated -- buffer length is 2000 bytes but 4276 bytes are needed.

This PR skips reporting loading error when CDS and AOT loggings are disabled.


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  • JDK-8358686: CDS and AOT can cause buffer truncation warning even when logging is disabled (Bug - P4)

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bridgekeeper bot commented Jun 18, 2025

👋 Welcome back yzheng! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

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@mur47x111 This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8358686: CDS and AOT can cause buffer truncation warning even when logging is disabled

Reviewed-by: dnsimon

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

  • 5726606: 8359709: java.net.HttpURLConnection sends unexpected "Host" request header in some cases after JDK-8344190

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@openjdk openjdk bot added the rfr Pull request is ready for review label Jun 18, 2025
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@mur47x111 The following label will be automatically applied to this pull request:

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@openjdk openjdk bot added the hotspot-runtime hotspot-runtime-dev@openjdk.org label Jun 18, 2025
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LGTM

@openjdk openjdk bot added the ready Pull request is ready to be integrated label Jun 18, 2025
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