--- /dev/null	2016-09-13 13:17:38.000000000 -0700
+++ new/jdk/test/java/lang/StackWalker/CallerSensitiveMethod/src/java.base/java/util/CSM.java	2016-09-13 13:17:37.000000000 -0700
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2016, 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 java.util;
+
+import static java.lang.StackWalker.Option.*;
+import java.lang.StackWalker.StackFrame;
+import java.util.stream.Collectors;
+
+import jdk.internal.reflect.CallerSensitive;
+import jdk.internal.reflect.Reflection;
+
+public class CSM {
+    private static StackWalker walker =
+        StackWalker.getInstance(EnumSet.of(RETAIN_CLASS_REFERENCE,
+                                           SHOW_HIDDEN_FRAMES,
+                                           SHOW_REFLECT_FRAMES));
+
+    public static class Result {
+        public final List<Class<?>> callers;
+        public final List<StackWalker.StackFrame> frames;
+        Result(List<Class<?>> callers,
+               List<StackFrame> frames) {
+            this.callers = callers;
+            this.frames = frames;
+        }
+    }
+
+    /**
+     * Returns the caller of this caller-sensitive method returned by
+     * by Reflection::getCallerClass.
+     *
+     * StackWalker::getCallerClass is expected to throw UOE
+     */
+    @CallerSensitive
+    public static Class<?> caller() {
+        Class<?> c1 = Reflection.getCallerClass();
+
+        try {
+            Class<?> c2 = walker.getCallerClass();
+            throw new RuntimeException("Exception not thrown by StackWalker::getCallerClass");
+        } catch (UnsupportedOperationException e) {}
+        return c1;
+    }
+
+    /**
+     * Returns the caller of this non-caller-sensitive method.
+     */
+    public static Result getCallerClass() {
+        Class<?> caller = walker.getCallerClass();
+        return new Result(List.of(caller), dump());
+    }
+
+    static List<StackFrame> dump() {
+        return walker.walk(s -> s.collect(Collectors.toList()));
+    }
+}