--- /dev/null	Mon Jan 26 16:11:53 2009
+++ new/test/java/lang/Float/ParseFloat.java	Mon Jan 26 16:11:52 2009
@@ -0,0 +1,210 @@
+/*
+ * Copyright 1998-2003 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 4160406 4705734 4707389
+ * @summary Tests for Float.parseFloat method
+ */
+
+public class ParseFloat {
+
+    private static void check(String val, float expected) {
+        float n = Float.parseFloat(val);
+        if (n != expected)
+            throw new RuntimeException("Float.parseFloat failed. String:" +
+                                                val + " Result:" + n);
+    }
+
+    private static void rudimentaryTest() {
+        check(new String(""+Float.MIN_VALUE), Float.MIN_VALUE);
+        check(new String(""+Float.MAX_VALUE), Float.MAX_VALUE);
+
+        check("10",     (float)  10.0);
+        check("10.0",   (float)  10.0);
+        check("10.01",  (float)  10.01);
+
+        check("-10",    (float) -10.0);
+        check("-10.00", (float) -10.0);
+        check("-10.01", (float) -10.01);
+    }
+
+    static  String badStrings[] = {
+        "",
+        "+",
+        "-",
+        "+e",
+        "-e",
+        "+e170",
+        "-e170",
+
+        // Make sure intermediate white space is not deleted.
+        "1234   e10",
+        "-1234   e10",
+
+        // Control characters in the interior of a string are not legal
+        "1\u0007e1",
+        "1e\u00071",
+
+        // NaN and infinity can't have trailing type suffices or exponents
+        "NaNf",
+        "NaNF",
+        "NaNd",
+        "NaND",
+        "-NaNf",
+        "-NaNF",
+        "-NaNd",
+        "-NaND",
+        "+NaNf",
+        "+NaNF",
+        "+NaNd",
+        "+NaND",
+        "Infinityf",
+        "InfinityF",
+        "Infinityd",
+        "InfinityD",
+        "-Infinityf",
+        "-InfinityF",
+        "-Infinityd",
+        "-InfinityD",
+        "+Infinityf",
+        "+InfinityF",
+        "+Infinityd",
+        "+InfinityD",
+
+        "NaNe10",
+        "-NaNe10",
+        "+NaNe10",
+        "Infinitye10",
+        "-Infinitye10",
+        "+Infinitye10",
+
+        // Non-ASCII digits are not recognized
+        "\u0661e\u0661", // 1e1 in Arabic-Indic digits
+        "\u06F1e\u06F1", // 1e1 in Extended Arabic-Indic digits
+        "\u0967e\u0967" // 1e1 in Devanagari digits
+    };
+
+    static String goodStrings[] = {
+        "NaN",
+        "+NaN",
+        "-NaN",
+        "Infinity",
+        "+Infinity",
+        "-Infinity",
+        "1.1e-23f",
+        ".1e-23f",
+        "1e-23",
+        "1f",
+        "1",
+        "2",
+        "1234",
+        "-1234",
+        "+1234",
+        "2147483647",   // Integer.MAX_VALUE
+        "2147483648",
+        "-2147483648",  // Integer.MIN_VALUE
+        "-2147483649",
+
+        "16777215",
+        "16777216",     // 2^24
+        "16777217",
+
+        "-16777215",
+        "-16777216",    // -2^24
+        "-16777217",
+
+        "9007199254740991",
+        "9007199254740992",     // 2^53
+        "9007199254740993",
+
+        "-9007199254740991",
+        "-9007199254740992",    // -2^53
+        "-9007199254740993",
+
+        "9223372036854775807",
+        "9223372036854775808",  // Long.MAX_VALUE
+        "9223372036854775809",
+
+        "-9223372036854775808",
+        "-9223372036854775809", // Long.MIN_VALUE
+        "-9223372036854775810"
+    };
+
+    static String paddedBadStrings[];
+    static String paddedGoodStrings[];
+    static {
+        String pad = " \t\n\r\f\u0001\u000b\u001f";
+        paddedBadStrings = new String[badStrings.length];
+        for(int i = 0 ; i <  badStrings.length; i++)
+            paddedBadStrings[i] = pad + badStrings[i] + pad;
+
+        paddedGoodStrings = new String[goodStrings.length];
+        for(int i = 0 ; i <  goodStrings.length; i++)
+            paddedGoodStrings[i] = pad + goodStrings[i] + pad;
+
+    }
+
+    /*
+     * Throws an exception if <code>Input</code> is
+     * <code>exceptionalInput</code> and {@link Float.parseFloat
+     * parseFloat} does <em>not</em> throw an exception or if
+     * <code>Input</code> is not <code>exceptionalInput</code> and
+     * <code>parseFloat</code> throws an exception.  This method does
+     * not attempt to test whether the string is converted to the
+     * proper value; just whether the input is accepted appropriately
+     * or not.
+     */
+    private static void testParsing(String [] input,
+                                    boolean exceptionalInput) {
+        for(int i = 0; i < input.length; i++) {
+            double d;
+
+            try {
+                d = Float.parseFloat(input[i]);
+            }
+            catch (NumberFormatException e) {
+                if (! exceptionalInput) {
+                    throw new RuntimeException("Float.parseFloat rejected " +
+                                               "good string `" + input[i] +
+                                               "'.");
+                }
+                break;
+            }
+            if (exceptionalInput) {
+                throw new RuntimeException("Float.parseFloat accepted " +
+                                           "bad string `" + input[i] +
+                                           "'.");
+            }
+        }
+    }
+
+    public static void main(String[] args) throws Exception {
+        rudimentaryTest();
+
+        testParsing(goodStrings, false);
+        testParsing(paddedGoodStrings, false);
+        testParsing(badStrings, true);
+        testParsing(paddedBadStrings, true);
+    }
+}