RFR 8085904: Test timeout on Mac

[Wang Weijun]

Please review the fix at

   http://cr.openjdk.java.net/~weijun/8085904/webrev.00/

I just s/home/tmp/g. /home is an autofs mount point and resolving it slows 
everything down. Hopefully FQDN look up is not the problem here.

Thanks
Max