--- /dev/null	2015-11-09 17:15:02.000000000 -0800
+++ new/jdk/test/java/lang/StackWalker/Basic.java	2015-11-09 17:15:02.000000000 -0800
@@ -0,0 +1,141 @@
+/*
+ * 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 8140450
+ * @summary Basic test for the StackWalker::walk method taking
+ *          the batch size mapper function
+ * @run testng Basic
+ */
+
+import java.lang.StackWalker.StackFrame;
+import java.util.List;
+import java.util.stream.Collectors;
+import static java.lang.StackWalker.Option.*;
+
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+import static org.testng.Assert.*;
+
+public class Basic {
+    private static boolean verbose = false;
+
+    @DataProvider(name = "stackDepths")
+    public static Object[][] stackDepths() {
+        return new Object[][] {
+                { new int[] { 12 },  new int[] { 4, 8, 12}      },
+                { new int[] { 18 },  new int[] { 8, 16, 20}     },
+                { new int[] { 32 },  new int[] { 16, 32, 64}    },
+        };
+    }
+
+    /**
+     * For a stack of a given depth, it creates a StackWalker with an estimate.
+     * Test walking different number of frames
+     */
+    @Test(dataProvider = "stackDepths")
+    public static void test(int[] depth, int[] estimates) {
+        Basic test = new Basic(depth[0]);
+        for (int estimate : estimates) {
+            test.walk(estimate);
+        }
+    }
+
+    private final int depth;
+    Basic(int depth) {
+        this.depth = depth;
+    }
+
+    /*
+     * Setup a stack builder with the expected stack depth
+     * Walk the stack and count the frames.
+     */
+    void walk(int estimate) {
+        int limit = Math.min(depth, 16);
+        List<StackFrame> frames = new StackBuilder(depth, limit).build();
+        System.out.format("depth=%d estimate=%d expected=%d walked=%d%n",
+                          depth, estimate, limit, frames.size());
+        assertEquals(limit, frames.size());
+    }
+
+    class StackBuilder {
+        private final int stackDepth;
+        private final int limit;
+        private int depth = 0;
+        private List<StackFrame> result;
+        StackBuilder(int stackDepth, int limit) {
+            this.stackDepth = stackDepth; // build method;
+            this.limit = limit;
+        }
+        List<StackFrame> build() {
+            trace("build");
+            m1();
+            return result;
+        }
+        void m1() {
+            trace("m1");
+            m2();
+        }
+        void m2() {
+            trace("m2");
+            m3();
+        }
+        void m3() {
+            trace("m3");
+            m4();
+        }
+        void m4() {
+            trace("m4");
+            int remaining = stackDepth-depth-1;
+            if (remaining >= 4) {
+                m1();
+            } else {
+                filler(remaining);
+            }
+        }
+        void filler(int i) {
+            trace("filler");
+            if (i == 0)
+                walk();
+            else
+                filler(--i);
+        }
+
+        void walk() {
+            StackWalker walker = StackWalker.create(RETAIN_CLASS_REFERENCE);
+            result = walker.walk(s -> s.limit(limit).collect(Collectors.toList()));
+        }
+        void trace(String methodname) {
+            ++depth;
+            if (verbose)
+                System.out.format("%2d: %s%n", depth, methodname);
+        }
+    }
+
+    static void assertEquals(int x, int y) {
+        if (x != y) {
+            throw new RuntimeException(x + " != " + y);
+        }
+    }
+}