--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/StackWalker/CountLocalSlots.java	Thu May 05 11:44:01 2016 -0700
@@ -0,0 +1,61 @@
+/*
+ * 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.
+ */
+
+/*
+ * @test
+ * @bug 8147039
+ * @summary Confirm locals[] always has expected length, even for "dead" locals
+ * @compile LocalsAndOperands.java
+ * @run testng/othervm -Xcomp CountLocalSlots
+ */
+
+import org.testng.annotations.Test;
+import java.lang.StackWalker.StackFrame;
+
+public class CountLocalSlots {
+    final static boolean debug = true;
+
+    @Test(dataProvider = "provider", dataProviderClass = LocalsAndOperands.class)
+    public void countLocalSlots(StackFrame... frames) {
+        for (StackFrame frame : frames) {
+            if (debug) {
+                System.out.println("Running countLocalSlots");
+                LocalsAndOperands.dumpStackWithLocals(frames);
+            }
+            // Confirm expected number of locals
+            String methodName = frame.getMethodName();
+            Integer expectedObj = (Integer) LocalsAndOperands.Tester.NUM_LOCALS.get(methodName);
+            if (expectedObj == null) {
+                if (!debug) { LocalsAndOperands.dumpStackWithLocals(frames); }
+                throw new RuntimeException("No NUM_LOCALS entry for " +
+                        methodName + "().  Update test?");
+            }
+            Object[] locals = (Object[]) LocalsAndOperands.invokeGetLocals(frame);
+            if (locals.length != expectedObj) {
+                if (!debug) { LocalsAndOperands.dumpStackWithLocals(frames); }
+                throw new RuntimeException(methodName + "(): number of locals (" +
+                        locals.length + ") did not match expected (" + expectedObj + ")");
+            }
+        }
+    }
+}