--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/epsilon/epsilonBarrierSet.hpp	Tue Jun 12 15:03:00 2018 +0200
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
+ *
+ * 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_GC_EPSILON_BARRIERSET_HPP
+#define SHARE_VM_GC_EPSILON_BARRIERSET_HPP
+
+#include "gc/shared/barrierSetAssembler.hpp"
+#include "gc/shared/barrierSet.hpp"
+
+// No interaction with application is required for Epsilon, and therefore
+// the barrier set is empty.
+class EpsilonBarrierSet: public BarrierSet {
+  friend class VMStructs;
+
+public:
+  EpsilonBarrierSet();
+
+  virtual void print_on(outputStream *st) const {}
+
+  virtual void on_thread_create(Thread* thread);
+  virtual void on_thread_destroy(Thread* thread);
+
+  template <DecoratorSet decorators, typename BarrierSetT = EpsilonBarrierSet>
+  class AccessBarrier: public BarrierSet::AccessBarrier<decorators, BarrierSetT> {};
+};
+
+template<>
+struct BarrierSet::GetName<EpsilonBarrierSet> {
+  static const BarrierSet::Name value = BarrierSet::EpsilonBarrierSet;
+};
+
+template<>
+struct BarrierSet::GetType<BarrierSet::EpsilonBarrierSet> {
+  typedef ::EpsilonBarrierSet type;
+};
+
+#endif // SHARE_VM_GC_EPSILON_BARRIERSET_HPP