RFR: JDK-8203839: API clarification: versioned jar entry verification in multi-release jar file

[Xueming Shen]

Hi,

Please help review the proposed api spec update for JDK-8203839 (and its 
CSR)

issue: JDK-8203839: API clarification: versioned jar entry verification 
in multi-release jar file
csr: https://bugs.openjdk.java.net/browse/JDK-8203840
webrev: http://cr.openjdk.java.net/~sherman/8203839/webrev

Thanks,
Sherman