--- a/test/sun/misc/Version/Version.java	Thu Mar 14 17:27:32 2013 +0100
+++ b/test/sun/misc/Version/Version.java	Fri Mar 15 01:43:04 2013 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2013, 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
@@ -29,7 +29,9 @@
  * @run main Version
  */
 
+import java.util.regex.*;
 import static sun.misc.Version.*;
+
 public class Version {
 
     public static void main(String[] args) throws Exception {
@@ -104,57 +106,32 @@
         int update = 0;
         String special = "";
         int build = 0;
-        CharSequence cs = version;
-        if (cs.length() >= 5) {
-            if (Character.isDigit(cs.charAt(0)) && cs.charAt(1) == '.' &&
-                Character.isDigit(cs.charAt(2)) && cs.charAt(3) == '.' &&
-                Character.isDigit(cs.charAt(4))) {
-                major = Character.digit(cs.charAt(0), 10);
-                minor = Character.digit(cs.charAt(2), 10);
-                micro = Character.digit(cs.charAt(4), 10);
-                cs = cs.subSequence(5, cs.length());
-            } else if (Character.isDigit(cs.charAt(0)) &&
-                       Character.isDigit(cs.charAt(1)) && cs.charAt(2) == '.' &&
-                       Character.isDigit(cs.charAt(3))) {
-                // HSX has nn.n (major.minor) version
-                major = Integer.valueOf(version.substring(0, 2)).intValue();
-                minor = Character.digit(cs.charAt(3), 10);
-                cs = cs.subSequence(4, cs.length());
-            }
-            if (cs.charAt(0) == '_' && cs.length() >= 3 &&
-                Character.isDigit(cs.charAt(1)) &&
-                Character.isDigit(cs.charAt(2))) {
-                int nextChar = 3;
-                String uu = cs.subSequence(1, 3).toString();
-                update = Integer.valueOf(uu).intValue();
-                if (cs.length() >= 4) {
-                    char c = cs.charAt(3);
-                    if (c >= 'a' && c <= 'z') {
-                        special = Character.toString(c);
-                        nextChar++;
-                    }
-                }
-                cs = cs.subSequence(nextChar, cs.length());
-            }
-            if (cs.charAt(0) == '-') {
-                // skip the first character
-                // valid format: <identifier>-bxx or bxx
-                // non-product VM will have -debug|-release appended
-                cs = cs.subSequence(1, cs.length());
-                String[] res = cs.toString().split("-");
-                for (int i = res.length - 1; i >= 0; i--) {
-                    String s = res[i];
-                    if (s.charAt(0) == 'b') {
-                        try {
-                            build = Integer.parseInt(s.substring(1, s.length()));
-                            break;
-                        } catch (NumberFormatException nfe) {
-                            // ignore
-                        }
-                    }
-                }
-            }
-        }
+
+        // n.n.n[_uu[c]][-<identifer>]-bxx
+        String regex = "([0-9]{1,2})";      // major
+        regex += "\\.";                     // separator
+        regex += "([0-9]{1,2})";            // minor
+        regex += "(\\.";                    // separator
+        regex +=   "([0-9]{1,2})";          // micro
+        regex += ")?";                      // micro is optional
+        regex += "(_";
+        regex +=   "([0-9]{2})";            // update
+        regex +=   "([a-z])?";              // special char (optional)
+        regex += ")?";                      // _uu[c] is optional
+        regex += "(\\-[a-z]{2,})?";         // -<identifier>
+        regex += "(\\-b([0-9]{1,2}))?";     // -bxx
+
+        Pattern p = Pattern.compile(regex);
+        Matcher m = p.matcher(version);
+        m.matches();
+
+        major = Integer.parseInt(m.group(1));
+        minor = Integer.parseInt(m.group(2));
+        micro = (m.group(4) == null) ? 0 : Integer.parseInt(m.group(4));
+        update = (m.group(6) == null) ? 0 : Integer.parseInt(m.group(6));
+        special = (m.group(7) == null) ? "" : m.group(7);
+        build = Integer.parseInt(m.group(10));
+
         VersionInfo vi = new VersionInfo(major, minor, micro, update, special, build);
         System.out.printf("newVersionInfo: input=%s output=%s\n", version, vi);
         return vi;