8340864: Remove unused lines related to vmClasses

Reviewed-by: shade, kvn

Author: iklam

src/hotspot/share/classfile/systemDictionary.hpp

@@ -293,13 +293,6 @@ class SystemDictionary : AllStatic {
                                   const char* message);
   static const char* find_nest_host_error(const constantPoolHandle& pool, int which);
 
-protected:
-  static InstanceKlass* _well_known_klasses[];
-
-private:
-  // table of box klasses (int_klass, etc.)
-  static InstanceKlass* _box_klasses[T_VOID+1];
-
   static OopHandle  _java_system_loader;
   static OopHandle  _java_platform_loader;
 

src/hotspot/share/classfile/vmClasses.cpp

@@ -45,14 +45,6 @@ InstanceKlass* vmClasses::_klasses[static_cast<int>(vmClassID::LIMIT)]
                                                  =  { nullptr /*, nullptr...*/ };
 InstanceKlass* vmClasses::_box_klasses[T_VOID+1] =  { nullptr /*, nullptr...*/ };
 
-
-// CDS: scan and relocate all classes referenced by _klasses[].
-void vmClasses::metaspace_pointers_do(MetaspaceClosure* it) {
-  for (auto id : EnumRange<vmClassID>{}) {
-    it->push(klass_addr_at(id));
-  }
-}
-
 bool vmClasses::is_loaded(InstanceKlass* klass) {
   return klass != nullptr && klass->is_loaded();
 }
@@ -205,8 +197,6 @@ void vmClasses::resolve_all(TRAPS) {
   _box_klasses[T_SHORT]   = vmClasses::Short_klass();
   _box_klasses[T_INT]     = vmClasses::Integer_klass();
   _box_klasses[T_LONG]    = vmClasses::Long_klass();
-  //_box_klasses[T_OBJECT]  = vmClasses::object_klass();
-  //_box_klasses[T_ARRAY]   = vmClasses::object_klass();
 
 #ifdef ASSERT
   if (CDSConfig::is_using_archive()) {

src/hotspot/share/classfile/vmClasses.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2021, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -32,7 +32,6 @@
 
 class ClassLoaderData;
 class InstanceKlass;
-class MetaspaceClosure;
 
 class vmClasses : AllStatic {
   friend class VMStructs;
@@ -95,7 +94,6 @@ class vmClasses : AllStatic {
     return &_klasses[as_int(id)];
   }
 
-  static void metaspace_pointers_do(MetaspaceClosure* it);
   static void resolve_all(TRAPS);
 
   static BasicType box_klass_type(Klass* k);  // inverse of box_klass