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

[Yumin Qi]

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