diff a/src/hotspot/share/gc/shenandoah/shenandoahStackChunkGCData.cpp b/src/hotspot/share/gc/shenandoah/shenandoahStackChunkGCData.cpp
--- /dev/null
+++ b/src/hotspot/share/gc/shenandoah/shenandoahStackChunkGCData.cpp
@@ -0,0 +1,35 @@
+/*
+ * Copyright Amazon.com Inc. 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 "gc/shenandoah/shenandoahAsserts.hpp"
+#include "gc/shenandoah/shenandoahHeap.inline.hpp"
+#include "gc/shenandoah/shenandoahStackChunkGCData.hpp"
+#include "gc/shenandoah/shenandoahUtils.hpp"
+#include "runtime/atomic.hpp"
+
+Atomic<int64_t> ShenandoahStackChunkGCData::_epoch_id_counter;
+
+void ShenandoahStackChunkGCData::change_epoch_id() {
+  shenandoah_assert_safepoint();
+  _epoch_id_counter.add_then_fetch(1, memory_order_relaxed);
+}