--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1CollectedHeap_ext.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2014, 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.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/g1CollectedHeap.hpp"
+#include "gc/g1/g1DefaultPolicy.hpp"
+#include "gc/g1/g1ParScanThreadState.hpp"
+#include "gc/g1/heapRegion.inline.hpp"
+
+class STWGCTimer;
+
+bool G1CollectedHeap::copy_allocation_context_stats(const jint* contexts,
+                                                    jlong* totals,
+                                                    jbyte* accuracy,
+                                                    jint len) {
+  return false;
+}
+
+HeapRegion* G1CollectedHeap::new_heap_region(uint hrs_index,
+                                             MemRegion mr) {
+  return new HeapRegion(hrs_index, bot(), mr);
+}
+
+G1Policy* G1CollectedHeap::create_g1_policy(STWGCTimer* gc_timer) {
+  return new G1DefaultPolicy(gc_timer);
+}