Backporting JDK-8217264 on JDK11u

[Langer, Christoph]

Hi Brice,

there is some process documentation, also involving the steps for CSR requests, here: https://wiki.openjdk.org/display/JDKUpdates/How+to+contribute+a+fix

The problem is, that the original change does not have a CSR that you could copy from, so you must create and fill out a new one. Ping me, once you’ve drafted it and I can review.

Best regards
Christoph

From: Brice Dutheil <brice.dutheil at gmail.com>
Sent: Dienstag, 11. Oktober 2022 10:49
To: Langer, Christoph <christoph.langer at sap.com>
Cc: jdk-updates-dev at openjdk.org
Subject: Re: Backporting JDK-8217264 on JDK11u

Hi Christopher,

I'm not familiar with the CSR process, do you have some pointers ?
Thanks in advance

-- Brice


On Tue, Oct 11, 2022 at 10:42 AM Langer, Christoph <christoph.langer at sap.com<mailto:christoph.langer at sap.com>> wrote:
Hi Brice,

sounds good. For the javadoc change we might think about going through the CSR process to be on the safe side (although the original change doesn’t have a CSR attached). But in my opinion the javadoc change is worthwhile doing, too.

Cheers
Christoph

From: Brice Dutheil <brice.dutheil at gmail.com<mailto:brice.dutheil at gmail.com>>
Sent: Dienstag, 11. Oktober 2022 10:39
To: Langer, Christoph <christoph.langer at sap.com<mailto:christoph.langer at sap.com>>
Cc: jdk-updates-dev at openjdk.org<mailto:jdk-updates-dev at openjdk.org>
Subject: Re: Backporting JDK-8217264 on JDK11u

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Hi Chrstopher,

Thank you for the feedback.

I will go ahead with maybe two PR: one for the javadoc and one for the deadlock prevention fix.

On Mon 10 Oct 2022 at 18:07 Langer, Christoph <christoph.langer at sap.com<mailto:christoph.langer at sap.com>> wrote:
Hi Brice,

yes, the backport you suggest seems appropriate. Please go ahead with a PR if you like.

Cheers
Christoph

From: jdk-updates-dev <jdk-updates-dev-retn at openjdk.org<mailto:jdk-updates-dev-retn at openjdk.org>> On Behalf Of Brice Dutheil
Sent: Samstag, 1. Oktober 2022 14:01
To: jdk-updates-dev at openjdk.org<mailto:jdk-updates-dev at openjdk.org>
Subject: Backporting JDK-8217264 on JDK11u

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Hi everyone,

I was redirected there, to ask about backporting some fixes made to `HttpClient` to JDK11u.

Indeed, some API usage around the BodySubscribers with a common need of handling GZipped HTTP payload, are problematic (results in a deadlock) on JDK11 because,

1. The API is improperly documented ; this was fixed in JDK 13 with https://bugs.openjdk.org/browse/JDK-8217627
2. Daniel fuchs contributed a mechanism that prevents the deadlock, also contributed in JDK 13 with https://bugs.openjdk.org/browse/JDK-8217264

While I would prefer users to upgrade to a more recent JDK, I believe fixing this deadlock on an LTS seems appropriate.

Thank you in advance for considering the backport of these fixes.

Cheers,
-- Brice
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