diff -r 76bec73a91f0 -r 4d58a35f3cfa src/hotspot/share/gc/cms/gSpaceCounters.hpp
--- a/src/hotspot/share/gc/cms/gSpaceCounters.hpp	Tue Nov 12 10:25:55 2019 -0500
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 2002, 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_GSPACECOUNTERS_HPP
-#define SHARE_GC_CMS_GSPACECOUNTERS_HPP
-
-#include "gc/shared/generation.hpp"
-#include "gc/shared/generationCounters.hpp"
-#include "runtime/perfData.hpp"
-#include "utilities/macros.hpp"
-
-// A GSpaceCounter is a holder class for performance counters
-// that track a space;
-
-class GSpaceCounters: public CHeapObj<mtGC> {
-  friend class VMStructs;
-
- private:
-  PerfVariable*      _capacity;
-  PerfVariable*      _used;
-
-  // Constant PerfData types don't need to retain a reference.
-  // However, it's a good idea to document them here.
-  // PerfConstant*     _size;
-
-  Generation*       _gen;
-  char*             _name_space;
-
- public:
-
-  GSpaceCounters(const char* name, int ordinal, size_t max_size, Generation* g,
-                 GenerationCounters* gc, bool sampled=true);
-
-  ~GSpaceCounters();
-
-  inline void update_capacity() {
-    _capacity->set_value(_gen->capacity());
-  }
-
-  inline void update_used() {
-    _used->set_value(_gen->used_stable());
-  }
-
-  // special version of update_used() to allow the used value to be
-  // passed as a parameter. This method can can be used in cases were
-  // the  utilization is already known and/or when the _gen->used()
-  // method is known to be expensive and we want to avoid unnecessary
-  // calls to it.
-  //
-  inline void update_used(size_t used) {
-    _used->set_value(used);
-  }
-
-  inline void inc_used(size_t size) {
-    _used->inc(size);
-  }
-
-  debug_only(
-    // for security reasons, we do not allow arbitrary reads from
-    // the counters as they may live in shared memory.
-    jlong used() {
-      return _used->get_value();
-    }
-    jlong capacity() {
-      return _used->get_value();
-    }
-  )
-
-  inline void update_all() {
-    update_used();
-    update_capacity();
-  }
-
-  const char* name_space() const        { return _name_space; }
-};
-
-class GenerationUsedHelper : public PerfLongSampleHelper {
-  private:
-    Generation* _gen;
-
-  public:
-    GenerationUsedHelper(Generation* g) : _gen(g) { }
-
-    inline jlong take_sample() {
-      return _gen->used_stable();
-    }
-};
-
-#endif // SHARE_GC_CMS_GSPACECOUNTERS_HPP