diff -r a56b7a304bac -r b83adf4bd4ee src/hotspot/share/gc/cms/adaptiveFreeList.hpp
--- a/src/hotspot/share/gc/cms/adaptiveFreeList.hpp	Wed Nov 20 09:28:31 2019 +0900
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,229 +0,0 @@
-/*
- * Copyright (c) 2001, 2019, 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
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- *
- */
-
-#ifndef SHARE_GC_CMS_ADAPTIVEFREELIST_HPP
-#define SHARE_GC_CMS_ADAPTIVEFREELIST_HPP
-
-#include "gc/cms/allocationStats.hpp"
-#include "memory/freeList.hpp"
-
-class CompactibleFreeListSpace;
-
-// A class for maintaining a free list of Chunk's.  The FreeList
-// maintains a the structure of the list (head, tail, etc.) plus
-// statistics for allocations from the list.  The links between items
-// are not part of FreeList.  The statistics are
-// used to make decisions about coalescing Chunk's when they
-// are swept during collection.
-//
-// See the corresponding .cpp file for a description of the specifics
-// for that implementation.
-
-class Mutex;
-
-template <class Chunk>
-class AdaptiveFreeList : public FreeList<Chunk> {
-  friend class CompactibleFreeListSpace;
-  friend class VMStructs;
-  // friend class PrintTreeCensusClosure<Chunk, FreeList_t>;
-
-  size_t        _hint;          // next larger size list with a positive surplus
-
-  AllocationStats _allocation_stats; // allocation-related statistics
-
- public:
-
-  AdaptiveFreeList();
-
-  using FreeList<Chunk>::assert_proper_lock_protection;
-#ifdef ASSERT
-  using FreeList<Chunk>::protecting_lock;
-#endif
-  using FreeList<Chunk>::count;
-  using FreeList<Chunk>::size;
-  using FreeList<Chunk>::verify_chunk_in_free_list;
-  using FreeList<Chunk>::getFirstNChunksFromList;
-  using FreeList<Chunk>::print_on;
-  void return_chunk_at_head(Chunk* fc, bool record_return);
-  void return_chunk_at_head(Chunk* fc);
-  void return_chunk_at_tail(Chunk* fc, bool record_return);
-  void return_chunk_at_tail(Chunk* fc);
-  using FreeList<Chunk>::return_chunk_at_tail;
-  using FreeList<Chunk>::remove_chunk;
-  using FreeList<Chunk>::prepend;
-  using FreeList<Chunk>::print_labels_on;
-  using FreeList<Chunk>::get_chunk_at_head;
-
-  // Initialize.
-  void initialize();
-
-  // Reset the head, tail, hint, and count of a free list.
-  void reset(size_t hint);
-
-  void print_on(outputStream* st, const char* c = NULL) const;
-
-  size_t hint() const {
-    return _hint;
-  }
-  void set_hint(size_t v) {
-    assert_proper_lock_protection();
-    assert(v == 0 || size() < v, "Bad hint");
-    _hint = v;
-  }
-
-  size_t get_better_size();
-
-  // Accessors for statistics
-  void init_statistics(bool split_birth = false);
-
-  AllocationStats* allocation_stats() {
-    assert_proper_lock_protection();
-    return &_allocation_stats;
-  }
-
-  ssize_t desired() const {
-    return _allocation_stats.desired();
-  }
-  void set_desired(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_desired(v);
-  }
-  void compute_desired(float inter_sweep_current,
-                       float inter_sweep_estimate,
-                       float intra_sweep_estimate) {
-    assert_proper_lock_protection();
-    _allocation_stats.compute_desired(count(),
-                                      inter_sweep_current,
-                                      inter_sweep_estimate,
-                                      intra_sweep_estimate);
-  }
-  ssize_t coal_desired() const {
-    return _allocation_stats.coal_desired();
-  }
-  void set_coal_desired(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coal_desired(v);
-  }
-
-  ssize_t surplus() const {
-    return _allocation_stats.surplus();
-  }
-  void set_surplus(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_surplus(v);
-  }
-  void increment_surplus() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_surplus();
-  }
-  void decrement_surplus() {
-    assert_proper_lock_protection();
-    _allocation_stats.decrement_surplus();
-  }
-
-  ssize_t bfr_surp() const {
-    return _allocation_stats.bfr_surp();
-  }
-  void set_bfr_surp(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_bfr_surp(v);
-  }
-  ssize_t prev_sweep() const {
-    return _allocation_stats.prev_sweep();
-  }
-  void set_prev_sweep(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_prev_sweep(v);
-  }
-  ssize_t before_sweep() const {
-    return _allocation_stats.before_sweep();
-  }
-  void set_before_sweep(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_before_sweep(v);
-  }
-
-  ssize_t coal_births() const {
-    return _allocation_stats.coal_births();
-  }
-  void set_coal_births(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coal_births(v);
-  }
-  void increment_coal_births() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_coal_births();
-  }
-
-  ssize_t coal_deaths() const {
-    return _allocation_stats.coal_deaths();
-  }
-  void set_coal_deaths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_coal_deaths(v);
-  }
-  void increment_coal_deaths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_coal_deaths();
-  }
-
-  ssize_t split_births() const {
-    return _allocation_stats.split_births();
-  }
-  void set_split_births(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_split_births(v);
-  }
-  void increment_split_births() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_split_births();
-  }
-
-  ssize_t split_deaths() const {
-    return _allocation_stats.split_deaths();
-  }
-  void set_split_deaths(ssize_t v) {
-    assert_proper_lock_protection();
-    _allocation_stats.set_split_deaths(v);
-  }
-  void increment_split_deaths() {
-    assert_proper_lock_protection();
-    _allocation_stats.increment_split_deaths();
-  }
-
-#ifndef PRODUCT
-  // For debugging.  The "_returned_bytes" in all the lists are summed
-  // and compared with the total number of bytes swept during a
-  // collection.
-  size_t returned_bytes() const { return _allocation_stats.returned_bytes(); }
-  void set_returned_bytes(size_t v) { _allocation_stats.set_returned_bytes(v); }
-  void increment_returned_bytes_by(size_t v) {
-    _allocation_stats.set_returned_bytes(_allocation_stats.returned_bytes() + v);
-  }
-  // Stats verification
-  void verify_stats() const;
-#endif  // NOT PRODUCT
-};
-
-#endif // SHARE_GC_CMS_ADAPTIVEFREELIST_HPP