RFR (S) JDK-8160487: JVM Should Check If java.lang.reflect.Module is a Final Class Not a Subclass

[Lois Foltan]

Hello,

Please review the following fix:

Webrev:
     http://cr.openjdk.java.net/~lfoltan/bug_jdk8160487/webrev/

Bug: JVM Should Check If java.lang.reflect.Module is a Final Class Not a 
Subclass
     https://bugs.openjdk.java.net/browse/JDK-8160487

Summary:
java.lang.reflect.Module is defined as a final class [1].  The VM was 
incorrectly checking for a subclass of java.lang.reflect.Module to 
validate a module.

Testing:
Ran full hotspot nightly testing tests, JCK vm & lang

Thanks,
Lois

[1] http://download.java.net/java/jigsaw/docs/api/index.html