--- /dev/null	2015-05-29 12:41:18.476004839 +0200
+++ new/src/share/vm/utilities/semaphore.hpp	2015-06-12 14:46:31.172226721 +0200
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015, 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_VM_UTILITIES_SEMAPHORE_HPP
+#define SHARE_VM_UTILITIES_SEMAPHORE_HPP
+
+#include "memory/allocation.hpp"
+#include "utilities/globalDefinitions.hpp"
+
+#define IMPLEMENTS_SEMAPHORE_CLASS 1
+
+#if defined(TARGET_OS_FAMILY_bsd)
+# include "semaphore_bsd.hpp"
+#elif defined(TARGET_OS_FAMILY_linux)
+# include "semaphore_linux.hpp"
+#elif defined(TARGET_OS_FAMILY_solaris)
+# include "semaphore_solaris.hpp"
+#elif defined(TARGET_OS_FAMILY_windows)
+# include "semaphore_windows.hpp"
+#else
+  // Redefine for platforms that don't implement the Semaphore class.
+# undef  IMPLEMENTS_SEMAPHORE_CLASS
+# define IMPLEMENTS_SEMAPHORE_CLASS 0
+#endif
+
+#if IMPLEMENTS_SEMAPHORE_CLASS
+
+class Semaphore : public CHeapObj<mtInternal> {
+ public:
+  static const uint NoMaxCount = (uint)-1;
+
+  Semaphore(uint value = 0, uint max = NoMaxCount);
+  ~Semaphore();
+  void signal();
+  void signal(uint count);
+  void wait();
+  bool trywait();
+  bool timedwait(unsigned int sec, int nsec);
+ private:
+  os_semaphore_t _semaphore;
+};
+
+#endif
+
+#endif // SHARE_VM_UTILITIES_SEMAPHORE_HPP