RFR (xs) 8151728: jni test crashes JVM assert(_handle != __null) failed: resolving NULL handle

[harold seigel]

Looks good.

Harold

On 3/11/2016 4:09 PM, Coleen Phillimore wrote:
> Summary: New assert needs to check for null.
>
> If there's an OOM during Throwable.backtrace creation, the backtrace 
> can be null, so the BacktraceIterator() checks for null, but the 
> assert I added didn't.
>
> Retested on failing test, Throwable tests and instrumented VM to force 
> this (removed instrumentation).
>
> open webrev at http://cr.openjdk.java.net/~coleenp/8151728/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8151728
>
> Thanks,
> Coleen
>