RFR 8191278: MappedByteBuffer bulk access memory failures are not handled gracefully

[Jamsheed]

Hi Andrew,

On 01/03/19 2:37 PM, Andrew Haley wrote:
> Are there any performance implications to this? It looks to me like there
> won't be, but I wonder if tests were done to confirm this.

normal mode(with c2 + intrinsic), there shouldn't be any impact on 
performance.

while failover mechanism could get impacted as it is bulk access.  
previously it used to crash immediately, now it can hang for sometime 
before exit(or get killed).

Best regards,

Jamsheed