8371559: Intermittent timeouts in test javax/net/ssl/Stapling/HttpsUrlConnClient.java

[ArnoZeller]

The test javax/net/ssl/Stapling/HttpsUrlConnClient.java sometimes hangs and run into timeouts. By adding some more tracing it showed that it can happen on machines with high load that the client thread throws a "Server not ready yet" RuntimeException because it only waits for 5 seconds for the server thread to come available.
I added some more output in case of errors to better see the issue and use the timeout factor to modify the maximum wait time.

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Issue

• JDK-8371559: Intermittent timeouts in test javax/net/ssl/Stapling/HttpsUrlConnClient.java (Bug - P3)

Reviewers

• Mikhail Yankelevich (@myankelev - Committer) Review applies to d2be50fa
• Matthias Baesken (@MBaesken - Reviewer)

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👋 Welcome back azeller! 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]

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

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

8371559: Intermittent timeouts in test javax/net/ssl/Stapling/HttpsUrlConnClient.java

Reviewed-by: mbaesken, myankelevich

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At the time when this comment was updated there had been 38 new commits pushed to the master branch:

• 4924b29: 8370655: Check EINTR handling InetAddress implementation and NET_ThrowNew
• 9e2008b: 8373676: Test javax/net/ssl/HttpsURLConnection/SubjectAltNameIP.java fails on a machine without IPV6
• 386ad61: 8373409: java/net/httpclient/http3/H3ErrorHandlingTest.java failed due to deadlock
• ... and 35 more: https://git.openjdk.org/jdk/compare/3559eeca0edd537c6160c6753cf6fc304afee4ca...master

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[mlbridge]

Webrevs

• 02: Full - Incremental (40c09e14)
• 01: Full - Incremental (d2be50fa)
• 00: Full (4d0dda06)

[myankelev]

Actually, what do you think about changing this test to utilise a countdownlatch instead of serverReady boolean?
This way we can get rid of the sleep all together, as there is still a chance of the same error happening

[ArnoZeller]

Actually, what do you think about changing this test to utilise a countdownlatch instead of serverReady boolean? This way we can get rid of the sleep all together, as there is still a chance of the same error happening

I changed the test accordingly and resolved the wildcard imports. Please have a look.

[myankelev]

Thank you for you changes, this looks good to me

[ArnoZeller]

@myankelev : Thanks a lot for your suggestions and the review - I will now let this pull request run for two days in our test system to see if our issues are completely solved.

[ArnoZeller]

I have seen no issues in our test landscape with this PR.

[ArnoZeller]

/integrate

[openjdk]

@ArnoZeller
Your change (at version 40c09e1) is now ready to be sponsored by a Committer.

[ArnoZeller]

Thanks @myankelev and @MBaesken for the reviews. Would one of you be so nice to sponsor this change?

[MBaesken]

/sponsor

[openjdk]

Going to push as commit af18fbd.
Since your change was applied there have been 38 commits pushed to the master branch:

• 4924b29: 8370655: Check EINTR handling InetAddress implementation and NET_ThrowNew
• 9e2008b: 8373676: Test javax/net/ssl/HttpsURLConnection/SubjectAltNameIP.java fails on a machine without IPV6
• 386ad61: 8373409: java/net/httpclient/http3/H3ErrorHandlingTest.java failed due to deadlock
• ... and 35 more: https://git.openjdk.org/jdk/compare/3559eeca0edd537c6160c6753cf6fc304afee4ca...master

Your commit was automatically rebased without conflicts.

[openjdk]

@MBaesken @ArnoZeller Pushed as commit af18fbd.

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

[xiezhaokun]

/backport jdk21u-dev

[openjdk]

@xiezhaokun the backport was successfully created on the branch backport-xiezhaokun-af18fbd4-master in my personal fork of openjdk/jdk21u-dev. To create a pull request with this backport targeting openjdk/jdk21u-dev:master, just click the following link:

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Hi all,

This pull request contains a backport of commit af18fbd4 from the openjdk/jdk repository.

The commit being backported was authored by Arno Zeller on 17 Dec 2025 and was reviewed by Matthias Baesken and Mikhail Yankelevich.

Thanks!

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