RFR(trivial): JDK-8224568: minimal and zero build fails after JDK-8213084

[Ao Qi]

Hi,

Could I please get reviews for this?

JBS:
https://bugs.openjdk.java.net/browse/JDK-8224568

Webrev:
http://cr.openjdk.java.net/~aoqi/8224568/webrev.00/

Tested:
linux-x86_64-{server, zero, minimal}-{release, fastdebug} build
linux-x86_64-server-release hotspot:tier1

Thanks,
Ao Qi