RFR: JDK-8154498: fix to 8154403 results in failure of UserModuleTest.java on all platforms

[joe darcy]

Looks fine Sherman; thanks,

-Joe

On 4/18/2016 7:58 PM, Xueming Shen wrote:
> Hi,
>
> Please help review the test case only change for JDK-8154498
>
> issue: https://bugs.openjdk.java.net/browse/JDK-8154498
> webrev: http://cr.openjdk.java.net/~sherman/8154498/webrev/
>
> A "empty" map need to be passed in as the parameter for 
> FileSystems.newFileSystem(),
> instead of "null".
>
> Thanks,
> Sherman