stop using mmap for zip I/O

[Andrew Haley]

On 26/02/15 22:17, Christos Zoulas wrote:
> There are numerous bug reports about the jvm crashing in libzip...
> Just google for "libzip java crash". The bottom line is that using
> mmap is problematic (I can get into more per OS details if necessary)
> because it will potentially signal when the file size is altered.

So we catch the signal, right?  Maybe there's something I'm missing...

Andrew.