On Mon, 20 Sep 2021 13:01:29 GMT, Roger Riggs <rri...@openjdk.org> wrote:
>> The intermittent test in java/lang/ProcessBuilder/Basic.java has identified
>> unexpected messages from a child Java VM
>> as the cause of the test failure. Attempts to control the output of the
>> child VM have failed, the VM is unrepentant .
>>
>> There is no functionality in the child except to wait long enough for the
>> test to finish and the child is destroyed.
>> The fix is to switch from using a Java child to using a native child; a new
>> executable `sleepmillis`.
>
> Roger Riggs has updated the pull request incrementally with one additional
> commit since the last revision:
>
> The switch from a Java child to /bin/sleep caused another test
> to fail on Linux. The cleanup for a test used /usr/bin/pkill "sleep 60".
> A race between that cleanup and subsequent tests that used sleep 60 or 600
> could kill the sleep before the test of waitFor completed.
> Changing the test using pkill to use 59 seconds makes the test cleanup
> selective to the sleep spawned for that test.
> The test that was failing (lines 2626-2624) passes consistently.
Hi Roger,
One suggestion based on your latest change, but that can be handled later.
Otherwise this seems fine.
Thanks,
David
test/jdk/java/lang/ProcessBuilder/Basic.java line 2217:
> 2215: // A unique (59s) time is needed to avoid killing other
> sleep processes.
> 2216: final String[] cmd = { "/bin/bash", "-c", "(/bin/sleep
> 59)" };
> 2217: final String[] cmdkill = { "/bin/bash", "-c",
> "(/usr/bin/pkill -f \"sleep 59\")" };
Maybe future RFE but why do we even need pkill here when we can get the PID of
the sleep process we create and kill only that process?
-------------
Marked as reviewed by dholmes (Reviewer).
PR: https://git.openjdk.java.net/jdk/pull/5239
