--- /dev/null	2017-10-04 16:47:44.101817018 +0200
+++ new/src/hotspot/share/gc/shared/gcFactory.hpp	2017-10-17 23:17:03.378818928 +0200
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
+ * 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_SHARED_GCFACTORY_HPP
+#define SHARE_GC_SHARED_GCFACTORY_HPP
+
+#include "memory/allocation.hpp"
+
+class GCFactory : public AllStatic {
+private:
+  static GC* _gc;
+
+  static void select_gc();
+  static void select_gc_ergonomically();
+  static bool gc_selected();
+
+public:
+  static jint initialize();
+  static bool is_initialized();
+  static GC* gc();
+
+  static void initialize_flags_global();
+};
+
+#endif // SHARE_GC_SHARED_GCFACTORY_HPP