RFR 8226798: JVM crash in klassItable::initialize_itable_for_interface(int, InstanceKlass*, bool, Thread*)

[Harold Seigel]

Hi,

Please review this JDK-14 fix for 8226798.  At class load time, the JVM 
was incorrectly calculating the size of a class's vtable in cases where 
a super class, in another package, contained a package private method 
that was also in a super interface.

Open Webrev: 
http://cr.openjdk.java.net/~hseigel/bug_8226798/webrev/index.html

JBS Bug: https://bugs.openjdk.java.net/browse/JDK-8226798

The fix was regression tested by running Mach5 tiers 1 and 2 tests and 
builds on Linux-x64, Solaris, Windows, and Mac OS X, by running Mach5 
tiers 3-5 tests on Linux-x64, and JCK lang and VM tests on Linux-x64.

Thanks, Harold