[jdk21u-dev] RFR: 8358496: Concurrent reading from Socket with timeout executes sequentially

[Roland Mesde]

On Thu, 13 Nov 2025 20:53:15 GMT, Roland Mesde <duke at openjdk.org> wrote:

> Backporting JDK-8358496: Concurrent reading from Socket with timeout executes sequentially. Updated SocketImpl so that the timeout applies to the total time waiting to acquire and read. Adds a new test to the existing java/net/Socket/Timeouts test. The test was minimally modified from the original commit for JDK version compatibility.
> 
> Ran GHA Sanity Checks (passed) and related test (passed).

The ```ScheduledExecutorService``` class was re-introduced because the ```ForkJoinPool``` class doesn't support the ```schedule``` method in JDK 21. It was refactored to use the previous implementation for compatibility.


ForkJoinPool.commonPool().schedule(task, delay, TimeUnit.MILLISECONDS)

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2470#issuecomment-3549484735