On Fri, 25 Jul 2025 23:09:48 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:

> Fix gcc warning about double close. forkedChildProcess() calls 
> closeDescriptors(), which always closes STDERR_FILENO + 1 and STDERR_FILENO + 
> 2. However, if it fails at some point after that, then forkedChildProcess() 
> will attempt to close these same two files again. Fixed by making 
> forkedChildProcess() no longer attempt to close these two files.
> 
> I first verified the warning by configuring with 
> --with-extra-cflags=-fanalyzer, and then verified the fix by doing the same.
> 
> Tested by running jdi nsk test. I'll add some more CI testing.

This looks reasonable to me. I just have trivial comment about the code comment 
introduced in this change, which I've added inline.

src/jdk.jdwp.agent/unix/native/libjdwp/exec_md.c line 82:

> 80:      * descriptors afresh.
> 81:      *
> 82:      * WARNING: We are not allowed to fail until after these two closes 
> are

Hello Chris, would it be better to word this as "We are not allowed to return 
from this function until after ...."?

-------------

Marked as reviewed by jpai (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/26487#pullrequestreview-3059210605
PR Review Comment: https://git.openjdk.org/jdk/pull/26487#discussion_r2233741615

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