RFR(XS): 8244495: Some jlink tests crash on Windows after JDK-8237750

[Kim Barrett]

> On May 6, 2020, at 9:01 PM, Yumin Qi <yumin.qi at oracle.com> wrote:
> 
> Hi,
>   Please review the fix for
>   bug: https://bugs.openjdk.java.net/browse/JDK-8244495
>   webrev: http://cr.openjdk.java.net/~minqi/8244495/webrev/
> 
> Tests tools/jlink/JLinkTest.javaand tools/jlink/basic/BasicTest.java failed after 8237750 pushed. The fix of 8237750 changed default behavior of loading zip library to on-demand loading. jlink (and jimage) assumes that zip library was loaded already, so call to FindEntry caused ACCESS_VIOLATION on Windows. This is a Windows specific problem. GetModuleHandle is used on the library already loaded and won't load the library if it's not loaded.
> 
>    Tests: tier1-2 passed.
> 
>   Thanks
>   Yumin

Looks good.