RFR: 6536943: Bogus -Xcheck:jni warning for SIG_INT action for SIGINT in JVM started from non-interactive shell

Yumin Qi yumin.qi at oracle.com
Thu Mar 13 15:19:36 UTC 2014

On 3/12/2014 10:08 PM, David Holmes wrote:
> Hi Yumin,
> Not sure that disabling all signal checks because there is a problem 
> with one signal is the right solution for this.
Or we check if the signal is SIGINT --- skip it only.

> That said I don't know what utility the signal checks provide in the 
> first place. Can anyone comment on that?
> David
> On 13/03/2014 9:55 AM, Yumin Qi wrote:
>> Forget to mention tests:
>> JPRT test;
>> manually testing on Java2Demo, for both shell and non-interactive shell.
>> This is only disabling checking signal handlers under non-interactive
>> shell, so no need to test more.
>> Thanks
>> Yumin
>> On 3/12/2014 2:52 PM, Yumin Qi wrote:
>>> Hi, Can I have your codereview for this simple change:
>>> http://cr.openjdk.java.net/~minqi/6536943/webrev00/
>>> Summary: Under non-interactive shell,  -Xcheck:jni output warning for
>>> SIGINT, since non-interactive shells set SIGINT to SIG_IGN as part of
>>> the job control features. The fix is that don't check signal handlers
>>> if java run in a non-interactive shell. This applies to all platforms
>>> except for Windows.
>>> Thanks
>>> Yumin

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