--- /dev/null	Mon Jan 26 16:11:26 2009
+++ new/test/java/lang/Byte/Decode.java	Mon Jan 26 16:11:25 2009
@@ -0,0 +1,98 @@
+/*
+ * Copyright 1999-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 4242173 5017980 6576055
+ * @summary Test Byte.decode method
+ * @author madbot
+ * @author Joseph D. Darcy
+ */
+
+/**
+ * There are six methods in java.lang.Byte which transform strings
+ * into a byte or Byte value:
+ *
+ * public Byte(String s)
+ * public static Byte decode(String nm)
+ * public static byte parseByte(String s, int radix)
+ * public static byte parseByte(String s)
+ * public static Byte valueOf(String s, int radix)
+ * public static Byte valueOf(String s)
+ *
+ * However, of these only decode has a nontrivial implementation
+ * in that class.
+ */
+public class Decode {
+
+    private static void check(String val, byte expected) {
+        byte n = (Byte.decode(val)).byteValue();
+        if (n != expected)
+            throw new RuntimeException("Byte.decode failed. String:" +
+                                                val + " Result:" + n);
+    }
+
+    private static void checkFailure(String val, String message) {
+        try {
+            byte n = (Byte.decode(val)).byteValue();
+            throw new RuntimeException(message);
+        } catch (NumberFormatException e) { /* Okay */}
+    }
+
+    public static void main(String[] args) throws Exception {
+        check(new String(""+Byte.MIN_VALUE), Byte.MIN_VALUE);
+        check(new String(""+Byte.MAX_VALUE), Byte.MAX_VALUE);
+
+        check("10",   (byte)10);
+        check("0x10", (byte)16);
+        check("0X10", (byte)16);
+        check("010",  (byte)8);
+        check("#10",  (byte)16);
+
+        check("+10",   (byte)10);
+        check("+0x10", (byte)16);
+        check("+0X10", (byte)16);
+        check("+010",  (byte)8);
+        check("+#10",  (byte)16);
+
+        check("-10",   (byte)-10);
+        check("-0x10", (byte)-16);
+        check("-0X10", (byte)-16);
+        check("-010",  (byte)-8);
+        check("-#10",  (byte)-16);
+
+        check(Integer.toString((int)Byte.MIN_VALUE), Byte.MIN_VALUE);
+        check(Integer.toString((int)Byte.MAX_VALUE), Byte.MAX_VALUE);
+
+        checkFailure("0x-10",   "Byte.decode allows negative sign in wrong position.");
+        checkFailure("0x+10",   "Byte.decode allows positive sign in wrong position.");
+
+        checkFailure("+",       "Raw plus sign allowed.");
+        checkFailure("-",       "Raw minus sign allowed.");
+
+        checkFailure(Integer.toString((int)Byte.MIN_VALUE - 1), "Out of range");
+        checkFailure(Integer.toString((int)Byte.MAX_VALUE + 1), "Out of range");
+
+        checkFailure("", "Empty String");
+    }
+}