Bug ID: JDK-8280944 Enable Unix domain sockets in Windows Selector notification mechanism

Type: Sub-task
Component: core-libs
Sub-Component: java.nio

Priority: P4
Status: Resolved
Resolution: Fixed

Submitted: 2022-01-31
Updated: 2022-10-13
Resolved: 2022-02-02

Versions (Unresolved/Resolved/Fixed)

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JDK 17	JDK 19
17.0.5Fixed	19 b09Fixed

It may be possible to use UNIX domain sockets for the windows Selector notification mechanism despite the bug indicated in the parent report, since the channel never gets closed.

Observations also show that no data is being lost due to the bug. i.e. even when one of the channels is closed all data is correctly sent and received. It is just the close notification that seems to get lost. That suggests the usage in the selector notification mechanism will not be affected.

Unix domain sockets will otherwise remain disabled in the Windows public Pipe implementation until the windows issue is fixed.

Fix request (17u): After backporting JDK-8280233, it was suggested to take this one as well. Backport is clean and no regressions spotted (GHA and SAP nigthlies). Risk: Moderate - similar to JDK-8280233.
04-08-2022
A pull request was submitted for review. URL: https://git.openjdk.org/jdk17u-dev/pull/625 Date: 2022-08-02 18:35:40 +0000
02-08-2022
Changeset: 87ab0994 Author: Michael McMahon <michaelm@openjdk.org> Date: 2022-02-02 15:04:59 +0000 URL: https://git.openjdk.java.net/jdk/commit/87ab0994ded3b535a160bb87b6540bd072042c44
02-02-2022
A pull request was submitted for review. URL: https://git.openjdk.java.net/jdk/pull/7302 Date: 2022-02-01 12:33:00 +0000
01-02-2022
Can use private PipeImpl constructor to create Unix domain based pipe for this purpose solely.
31-01-2022

Relates :	JDK-8266900 - java/net/httpclient/ShortResponseBody.java fails on windows with java.io.IOException: Unable to establish loopback connection
Relates :	JDK-8295275 - java/net/httpclient/ProxyAuthDisabledSchemes.java failed with "IOException: Unable to establish loopback connection"
Relates :	JDK-8280868 - LineBodyHandlerTest.java creates and discards too many clients
Relates :	JDK-8282296 - (se) Pipe.open() creates a Pipe implementation that uses Unix domain sockets (win)