RFR 9: 8168517 : java/lang/ProcessBuilder/Basic.java failed

David Holmes david.holmes at oracle.com
Thu Oct 27 20:51:14 UTC 2016


On 28/10/2016 3:12 AM, Roger Riggs wrote:
> Hi David,
>
> On 10/27/2016 12:57 PM, David Holmes wrote:
>> Hi Roger,
>>
>> On 28/10/2016 1:44 AM, Roger Riggs wrote:
>>> Please review a test fix for a timeout on a busy system in
>>> Process.waitFor a destroyed process.
>>
>> Won't that now cause the test to hang until timed-out by the harness?
> yes, but an in-app timeout is not much different than the harness timeout
> so I didn't complicate the test. Under normal system loading it should
> be 1-4 seconds.

Okay, but then the logic following this change is redundant:

2407             int exitValue = p.waitFor();  // wait for it to be done
2408
2409             start = System.nanoTime();
2410             p.waitFor(8, TimeUnit.SECONDS);
2411             end = System.nanoTime();
2412
2413             if ((end - start) > TimeUnit.SECONDS.toNanos(7))
2414                 fail("Test failed: waitFor took too long on a dead 
process. (" + (end - start) + "ns)"
2415                 + ", exitValue: " + exitValue);

David

> I contemplated increasing the timeout but given the issue is system loading
> I didn't have a good idea what to raise it to.  30sec, 1 min, 2 min.
> and the harness timeout is 2min.
>
> Roger
>
>>
>> David
>>
>>> Webrev:
>>>    http://cr.openjdk.java.net/~rriggs/webrev-basic-destroy-8168517/
>>>
>>> Thanks, Roger
>>>
>


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