RFR: JNI: Return the correct error code when a VM is already created

[Coleen Phillimore]

This looks good to me.  I will file a bug and send out a webrev. I am 
one reviewer, we need another, and you are contributor.
Coleen

On 7/2/2013 5:55 AM, Sylvestre Ledru wrote:
> Hello,
>
> I initially proposed this attached patch 3 years ago [1]
> I was wondering if this patch could be applied against the version 8. I
> tested it against the JDK 7 and 8 (the patch applies without any problem
> to both forest).
>
> This would save a lot of time for people who are getting this bug.
> Without it, it is hard to find out what is wrong in the JNI code.
>
> Thanks,
> Sylvestre
> [1]
> http://mail.openjdk.java.net/pipermail/hotspot-dev/2010-September/003340.html
> PS: please C/C me
>