RFR(XS): 8234130: Zero VM build broken after 8233913

[Jie Fu]

Hi all,

May I get reviews for the small fix?

JBS:    https://bugs.openjdk.java.net/browse/JDK-8234130
Webrev: http://cr.openjdk.java.net/~jiefu/8234130/webrev.00/

Thanks a lot.
Best regards,
Jie