--- /dev/null	2018-11-30 10:10:44.238550338 +0100
+++ new/src/hotspot/share/gc/shenandoah/shenandoahCollectorPolicy.hpp	2018-11-30 10:23:45.110805356 +0100
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2013, 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_SHENANDOAH_SHENANDOAHCOLLECTORPOLICY_HPP
+#define SHARE_VM_GC_SHENANDOAH_SHENANDOAHCOLLECTORPOLICY_HPP
+
+#include "gc/shared/collectorPolicy.hpp"
+#include "gc/shared/gcTrace.hpp"
+#include "gc/shenandoah/shenandoahHeap.hpp"
+#include "utilities/ostream.hpp"
+
+class ShenandoahCollectorPolicy: public CollectorPolicy {
+private:
+  size_t _success_concurrent_gcs;
+  size_t _success_degenerated_gcs;
+  size_t _success_full_gcs;
+  size_t _alloc_failure_degenerated;
+  size_t _alloc_failure_degenerated_upgrade_to_full;
+  size_t _alloc_failure_full;
+  size_t _explicit_concurrent;
+  size_t _explicit_full;
+  size_t _implicit_concurrent;
+  size_t _implicit_full;
+  size_t _degen_points[ShenandoahHeap::_DEGENERATED_LIMIT];
+
+  ShenandoahSharedFlag _in_shutdown;
+
+  ShenandoahTracer* _tracer;
+
+  size_t _cycle_counter;
+
+public:
+  ShenandoahCollectorPolicy();
+
+  void initialize_alignments();
+
+  // TODO: This is different from gc_end: that one encompasses one VM operation.
+  // These two encompass the entire cycle.
+  void record_cycle_start();
+
+  void record_success_concurrent();
+  void record_success_degenerated();
+  void record_success_full();
+  void record_alloc_failure_to_degenerated(ShenandoahHeap::ShenandoahDegenPoint point);
+  void record_alloc_failure_to_full();
+  void record_degenerated_upgrade_to_full();
+  void record_explicit_to_concurrent();
+  void record_explicit_to_full();
+  void record_implicit_to_concurrent();
+  void record_implicit_to_full();
+
+  void record_shutdown();
+  bool is_at_shutdown();
+
+  ShenandoahTracer* tracer() {return _tracer;}
+
+  size_t cycle_counter() const;
+
+  void print_gc_stats(outputStream* out) const;
+};
+
+#endif // SHARE_VM_GC_SHENANDOAH_SHENANDOAHCOLLECTORPOLICY_HPP