--- old/src/share/classes/sun/tools/jar/Main.java	2012-11-09 12:21:58.368260002 +0800
+++ new/src/share/classes/sun/tools/jar/Main.java	2012-11-09 12:21:58.208260002 +0800
@@ -839,8 +839,8 @@
 
     void replaceFSC(String files[]) {
         if (files != null) {
-            for (String file : files) {
-                file = file.replace(File.separatorChar, '/');
+            for (int i = 0; i < files.length; i++) {
+                files[i] = files[i].replace(File.separatorChar, '/');
             }
         }
     }
--- /dev/null	2012-10-24 13:18:27.574698004 +0800
+++ new/test/tools/jar/JarBackSlash.java	2012-11-09 12:21:58.628260002 +0800
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 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.
+ */
+
+/*
+ * Portions Copyright (c) 2012 IBM Corporation
+ */
+
+/*
+ * @test
+ * @bug 7201156
+ * @summary jar tool fails to convert file separation characters for list and extract
+ * @author Sean Chou
+ */
+
+import java.io.File;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import java.io.PrintStream;
+import java.util.ArrayList;
+import java.util.List;
+import sun.tools.jar.Main;
+
+public class JarBackSlash {
+
+    public static void realMain(String[] args) throws Throwable {
+
+        String pathRtJar = System.getProperties().getProperty("java.home") + "/lib/rt.jar";
+
+        List<String> argList = new ArrayList<String>();
+        argList.add("-tvf");
+        argList.add(pathRtJar);
+        argList.add("java" + File.separatorChar + "lang" + File.separatorChar + "String.class");
+
+        String jarArgs[] = new String[argList.size()];
+        jarArgs = argList.toArray(jarArgs);
+
+        PipedOutputStream pipedOutput = new PipedOutputStream();
+        PipedInputStream pipedInput = new PipedInputStream(pipedOutput);
+        PrintStream out = new PrintStream(pipedOutput);
+
+        Main jarTool = new Main(out, System.err, "jar");
+        if (!jarTool.run(jarArgs)) {
+            fail("Could not list jar file.");
+        }
+
+        out.flush();
+        check(pipedInput.available() > 0);
+    }
+
+    //--------------------- Infrastructure ---------------------------
+    static volatile int passed = 0, failed = 0;
+    static void pass() {passed++;}
+    static void fail() {failed++; Thread.dumpStack();}
+    static void fail(String msg) {System.out.println(msg); fail();}
+    static void unexpected(Throwable t) {failed++; t.printStackTrace();}
+    static void check(boolean cond) {if (cond) pass(); else fail();}
+    static void equal(Object x, Object y) {
+        if (x == null ? y == null : x.equals(y)) pass();
+        else fail(x + " not equal to " + y);}
+    public static void main(String[] args) throws Throwable {
+        try {realMain(args);} catch (Throwable t) {unexpected(t);}
+        System.out.println("\nPassed = " + passed + " failed = " + failed);
+        if (failed > 0) throw new AssertionError("Some tests failed");}
+}