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

[mur47x111]

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.

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

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

Reviewers

• Doug Simon (@dougxc - Reviewer)
• Ioi Lam (@iklam - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/25866/head:pull/25866
$ git checkout pull/25866

Update a local copy of the PR:
$ git checkout pull/25866
$ git pull https://git.openjdk.org/jdk.git pull/25866/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 25866

View PR using the GUI difftool:
$ git pr show -t 25866

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/25866.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 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.

[openjdk]

@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, iklam

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 12 new commits pushed to the master branch:

• 982064e: 8359167: Remove unused test/hotspot/jtreg/vmTestbase/nsk/share/jpda/BindServer.java
• b52af18: 8359386: Fix incorrect value for max_size of C2CodeStub when APX is used
• 7bc0d82: 8359227: Code cache/heap size options should be size_t
• ... and 9 more: https://git.openjdk.org/jdk/compare/2b94b70ef50675f7853c0cb6a61e60e6eb7d92ed...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[openjdk]

@mur47x111 The following label will be automatically applied to this pull request:

• hotspot-runtime

When this pull request is ready to be reviewed, an "RFR" email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label pull request command.

[mlbridge]

Webrevs

• 00: Full (33774677)

[dougxc]

LGTM

[iklam]

LGTM

[mur47x111]

Thanks for the reviews! Passed tier1-3
/integrate

[mur47x111]

/integrate

[openjdk]

Going to push as commit 2e3bdec.
Since your change was applied there have been 19 commits pushed to the master branch:

• c4fb00a: 8358769: Update --release 25 symbol information for JDK 25 build 26
• 01d4b77: 8319242: HotSpot Style Guide should discourage non-local variables with non-trivial initialization or destruction
• c7125aa: 8020282: Generated code quality: redundant LEAs in the chained dereferences
• ... and 16 more: https://git.openjdk.org/jdk/compare/2b94b70ef50675f7853c0cb6a61e60e6eb7d92ed...master

Your commit was automatically rebased without conflicts.

[openjdk]

@mur47x111 Pushed as commit 2e3bdec.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.

[openjdk]

@mur47x111 The command integrate can only be used in open pull requests.