RFR JDK-8074819: Resolve disabled warnings for libzip

[Naoto Sato]

Looks good to me.

Naoto

On 6/3/16 2:49 PM, Xueming Shen wrote:
> Hi,
>
> Please help review the change for JDK-8074819.
>
> issue: https://bugs.openjdk.java.net/browse/JDK-8074819
> webrev: http://cr.openjdk.java.net/~sherman/8074819
>
> Thanks,
> Sherman