RFR:8075253: Multiversion JAR feature: AppCDS does not support MV-JARs

[Yumin Qi]

Hi,  Can I have your codereview on:

bug: https://bugs.openjdk.java.net/browse/JDK-8075253
webrev: http://cr.openjdk.java.net/~minqi/8075253/webrev02/

Summary: Multiple versioned jars will be supported by JEP: JEP 238: 
Multiple-Release jar files. This change adds support for MVJ's in the 
CDS shared-archive dumping process.

Currently JEP 238 has not been integrated, hotspot changes will be 
pushed after JEP 238 integration.

Thanks
Yumin