8028520: JVM should not throw VerifyError when a private method overrides a final method

Summary: Exclude private methods when checking for final method override.
Reviewed-by: kamg, coleenp, dholmes, mseledtsov

src/share/vm/classfile/classFileParser.cpp

@@ -4483,8 +4483,8 @@ void ClassFileParser::check_final_method_override(instanceKlassHandle this_klass
   for (int index = 0; index < num_methods; index++) {
     Method* m = methods->at(index);
 
-    // skip static and <init> methods
-    if ((!m->is_static()) &&
+    // skip private, static, and <init> methods
+    if ((!m->is_private() && !m->is_static()) &&
         (m->name() != vmSymbols::object_initializer_name())) {
 
       Symbol* name = m->name();