--- /dev/null	2017-01-22 10:16:57.869617664 -0800
+++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.jtt/src/org/graalvm/compiler/jtt/jdk/UnsafeAccess01.java	2017-02-15 17:02:44.554434214 -0800
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2008, 2012, 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.
+ */
+package org.graalvm.compiler.jtt.jdk;
+
+import java.lang.reflect.Field;
+
+import org.junit.Test;
+
+import sun.misc.Unsafe;
+
+import org.graalvm.compiler.jtt.JTTTest;
+
+/*
+ */
+public class UnsafeAccess01 extends JTTTest {
+
+    private static int randomValue = 100;
+    private static final Unsafe unsafe;
+    private static final long offset;
+    private static Object staticObject = new TestClass();
+
+    static {
+        unsafe = getUnsafe();
+        Field field = null;
+        try {
+            field = TestClass.class.getDeclaredField("field");
+        } catch (NoSuchFieldException e) {
+        } catch (SecurityException e) {
+        }
+        offset = unsafe.objectFieldOffset(field);
+    }
+
+    private static class TestClass {
+        private int field = 42;
+    }
+
+    public static int test() {
+        final TestClass object = new TestClass();
+        final int value = unsafe.getInt(object, offset);
+        return value;
+    }
+
+    static Unsafe getUnsafe() {
+        try {
+            final Field unsafeField = Unsafe.class.getDeclaredField("theUnsafe");
+            unsafeField.setAccessible(true);
+            return (Unsafe) unsafeField.get(null);
+        } catch (Exception e) {
+            throw new Error(e);
+        }
+    }
+
+    @Test
+    public void run0() throws Throwable {
+        runTest("test");
+    }
+
+    @Test
+    public void runDiamond() throws Throwable {
+        runTest("testDiamond");
+    }
+
+    public static int testDiamond() {
+
+        final Object object = staticObject;
+        final int oldValue = ((TestClass) object).field;
+
+        if (randomValue == 100) {
+            unsafe.putInt(object, offset, 41);
+        } else {
+            unsafe.putInt(object, offset, 40);
+        }
+        unsafe.putInt(object, offset, 42);
+        return oldValue;
+    }
+}