RFR(trivial): JDK-8233608: Minimal build broken after JDK-8233494

[Ao Qi]

Hi,

Minimal build is broken after JDK-8233494. Could I please get reviews for this?

JBS:
https://bugs.openjdk.java.net/browse/JDK-8233608

Fix:
http://cr.openjdk.java.net/~aoqi/8233608/webrev.00/

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

Thanks,
Ao Qi