--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/StackWalker/LocalsAndOperands.java	Tue Nov 24 15:05:58 2015 -0800
@@ -0,0 +1,118 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * @test
+ * @bug 8020968
+ * @summary Sanity test for locals and operands
+ * @run main LocalsAndOperands
+ */
+
+import java.lang.StackWalker.StackFrame;
+import java.lang.reflect.*;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class LocalsAndOperands {
+    static Class<?> liveStackFrameClass;
+    static Class<?> primitiveValueClass;
+    static StackWalker extendedWalker;
+    static Method getLocals;
+    static Method getOperands;
+    static Method getMonitors;
+    static Method primitiveType;
+    public static void main(String... args) throws Exception {
+        liveStackFrameClass = Class.forName("java.lang.LiveStackFrame");
+        primitiveValueClass = Class.forName("java.lang.LiveStackFrame$PrimitiveValue");
+
+        getLocals = liveStackFrameClass.getDeclaredMethod("getLocals");
+        getLocals.setAccessible(true);
+
+        getOperands = liveStackFrameClass.getDeclaredMethod("getStack");
+        getOperands.setAccessible(true);
+
+        getMonitors = liveStackFrameClass.getDeclaredMethod("getMonitors");
+        getMonitors.setAccessible(true);
+
+        primitiveType = primitiveValueClass.getDeclaredMethod("type");
+        primitiveType.setAccessible(true);
+
+        Method method = liveStackFrameClass.getMethod("getStackWalker");
+        method.setAccessible(true);
+        extendedWalker = (StackWalker) method.invoke(null);
+        new LocalsAndOperands(extendedWalker, true).test();
+
+        // no access to local and operands.
+        new LocalsAndOperands(StackWalker.getInstance(), false).test();
+    }
+
+    private final StackWalker walker;
+    private final boolean extended;
+    LocalsAndOperands(StackWalker walker, boolean extended) {
+        this.walker = walker;
+        this.extended = extended;
+    }
+
+    synchronized void test() throws Exception {
+        int x = 10;
+        char c = 'z';
+        String hi = "himom";
+        long l = 1000000L;
+        double d =  3.1415926;
+
+        List<StackWalker.StackFrame> frames = walker.walk(s -> s.collect(Collectors.toList()));
+        if (extended) {
+            for (StackWalker.StackFrame f : frames) {
+                System.out.println("frame: " + f);
+                Object[] locals = (Object[]) getLocals.invoke(f);
+                for (int i = 0; i < locals.length; i++) {
+                    System.out.format("local %d: %s type %s%n", i, locals[i], type(locals[i]));
+                }
+
+                Object[] operands = (Object[]) getOperands.invoke(f);
+                for (int i = 0; i < operands.length; i++) {
+                    System.out.format("operand %d: %s type %s%n", i, operands[i], type(operands[i]));
+                }
+
+                Object[] monitors = (Object[]) getMonitors.invoke(f);
+                for (int i = 0; i < monitors.length; i++) {
+                    System.out.format("monitor %d: %s%n", i, monitors[i]);
+                }
+            }
+        } else {
+            for (StackFrame f : frames) {
+                if (liveStackFrameClass.isInstance(f))
+                    throw new RuntimeException("should not be LiveStackFrame");
+            }
+        }
+    }
+
+    String type(Object o) throws Exception {
+        if (primitiveValueClass.isInstance(o)) {
+            char c = (char)primitiveType.invoke(o);
+            return String.valueOf(c);
+        } else {
+            return o.getClass().getName();
+        }
+    }
+}