RFR (S) 8028553: The JVM should not throw VerifyError when 'overriding' a static final method in a superclass.

[harold seigel]

Hi,

Please review this small fix for bug JDK-8028553.  The fix ensures that 
a final method is not static before issuing a VerifyError if another 
method appears to override the final method.

Bug: https://bugs.openjdk.java.net/browse/JDK-8028553
Open webrev: http://cr.openjdk.java.net/~hseigel/bug_8028553_jdk9/ 
<http://cr.openjdk.java.net/%7Ehseigel/bug_8028553_jdk9/>

The fix was tested with the JCK lang and vm tests, the default method 
tests, the UTE verifier, quick and mlvm tests, the JTREG hotspot tests, 
and a test that reproduced the problem.

Thanks! Harold