8198372: API to create a SelectableChannel to a FileDescriptor

[Alan Bateman]

On 20/06/2018 14:48, David Lloyd wrote:
> Why is the permission check needed?  I believe that there is no
> material sensitive information that can be gleaned from the
> readability or writability of a file descriptor.
>
Readiness is an interesting side channel so a permission check is 
needed. The proposal here is attempting to be consistent with existing 
APIs that do the same check when creating streams to an existing 
FileDescriptor.

-Alan