--- old/src/hotspot/share/gc/z/zPreMappedMemory.hpp	2019-05-02 09:57:54.939228322 +0200
+++ /dev/null	2019-04-18 12:37:53.502576822 +0200
@@ -1,54 +0,0 @@
-/*
- * Copyright (c) 2016, 2017, 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_Z_ZPREMAPPEDMEMORY_HPP
-#define SHARE_GC_Z_ZPREMAPPEDMEMORY_HPP
-
-#include "gc/z/zPhysicalMemory.hpp"
-#include "gc/z/zVirtualMemory.hpp"
-#include "memory/allocation.hpp"
-
-class ZPage;
-
-class ZPreMappedMemory {
-private:
-  ZVirtualMemory  _vmem;
-  ZPhysicalMemory _pmem;
-  bool            _initialized;
-
-public:
-  ZPreMappedMemory(ZVirtualMemoryManager &vmm, ZPhysicalMemoryManager &pmm, size_t size);
-
-  bool is_initialized() const;
-
-  ZPhysicalMemory& physical_memory();
-  const ZVirtualMemory& virtual_memory() const;
-
-  size_t available() const;
-
-  ZPage* alloc_page(uint8_t type, size_t size);
-
-  void clear();
-};
-
-#endif // SHARE_GC_Z_ZPREMAPPEDMEMORY_HPP