--- /dev/null	2016-05-17 12:01:17.473251102 +0900
+++ new/test/java/text/Format/MessageFormat/MessageRegression.java	2016-05-26 10:32:18.142842527 +0900
@@ -0,0 +1,644 @@
+/*
+ * Copyright (c) 1997, 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 4031438 4058973 4074764 4094906 4104976 4105380 4106659 4106660 4106661
+ * 4111739 4112104 4113018 4114739 4114743 4116444 4118592 4118594 4120552
+ * 4142938 4169959 4232154 4293229
+ * @summary Regression tests for MessageFormat and associated classes
+ * @library /java/text/testlib
+ */
+/*
+(C) Copyright Taligent, Inc. 1996 - All Rights Reserved
+(C) Copyright IBM Corp. 1996 - All Rights Reserved
+
+  The original version of this source code and documentation is copyrighted and
+owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These materials are
+provided under terms of a License Agreement between Taligent and Sun. This
+technology is protected by multiple US and International patents. This notice and
+attribution to Taligent may not be removed.
+  Taligent is a registered trademark of Taligent, Inc.
+*/
+
+import java.text.*;
+import java.util.*;
+import java.io.IOException;
+import java.io.FileOutputStream;
+import java.io.FileInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.ObjectOutputStream;
+import java.io.ObjectInputStream;
+import java.io.Serializable;
+
+public class MessageRegression extends IntlTest {
+
+    public static void main(String[] args) throws Exception {
+        new MessageRegression().run(args);
+    }
+
+    /* @bug 4074764
+     * Null exception when formatting pattern with MessageFormat
+     * with no parameters.
+     */
+    public void Test4074764() {
+        String[] pattern = {"Message without param",
+        "Message with param:{0}",
+        "Longer Message with param {0}"};
+        //difference between the two param strings are that
+        //in the first one, the param position is within the
+        //length of the string without param while it is not so
+        //in the other case.
+
+        MessageFormat messageFormatter = new MessageFormat("");
+
+        try {
+            //Apply pattern with param and print the result
+            messageFormatter.applyPattern(pattern[1]);
+            Object[] params = {new String("BUG"), new Date()};
+            String tempBuffer = messageFormatter.format(params);
+            if (!tempBuffer.equals("Message with param:BUG"))
+                errln("MessageFormat with one param test failed.");
+            logln("Formatted with one extra param : " + tempBuffer);
+
+            //Apply pattern without param and print the result
+            messageFormatter.applyPattern(pattern[0]);
+            tempBuffer = messageFormatter.format(null);
+            if (!tempBuffer.equals("Message without param"))
+                errln("MessageFormat with no param test failed.");
+            logln("Formatted with no params : " + tempBuffer);
+
+             tempBuffer = messageFormatter.format(params);
+             if (!tempBuffer.equals("Message without param"))
+                errln("Formatted with arguments > subsitution failed. result = " + tempBuffer.toString());
+             logln("Formatted with extra params : " + tempBuffer);
+            //This statement gives an exception while formatting...
+            //If we use pattern[1] for the message with param,
+            //we get an NullPointerException in MessageFormat.java(617)
+            //If we use pattern[2] for the message with param,
+            //we get an StringArrayIndexOutOfBoundsException in MessageFormat.java(614)
+            //Both are due to maxOffset not being reset to -1
+            //in applyPattern() when the pattern does not
+            //contain any param.
+        } catch (Exception foo) {
+            errln("Exception when formatting with no params.");
+        }
+    }
+
+    /* @bug 4058973
+     * MessageFormat.toPattern has weird rounding behavior.
+     */
+    public void Test4058973() {
+
+        MessageFormat fmt = new MessageFormat("{0,choice,0#no files|1#one file|1< {0,number,integer} files}");
+        String pat = fmt.toPattern();
+        if (!pat.equals("{0,choice,0.0#no files|1.0#one file|1.0< {0,number,integer} files}")) {
+            errln("MessageFormat.toPattern failed");
+        }
+    }
+    /* @bug 4031438
+     * More robust message formats.
+     */
+    public void Test4031438() {
+        String pattern1 = "Impossible {1} has occurred -- status code is {0} and message is {2}.";
+        String pattern2 = "Double '' Quotes {0} test and quoted '{1}' test plus 'other {2} stuff'.";
+
+        // If the current locale is hi_IN, skip this test case.
+        if (Locale.getDefault().equals(new Locale("hi", "IN"))) {
+            return;
+        }
+
+        MessageFormat messageFormatter = new MessageFormat("");
+
+        try {
+            logln("Apply with pattern : " + pattern1);
+            messageFormatter.applyPattern(pattern1);
+            Object[] params = {new Integer(7)};
+            String tempBuffer = messageFormatter.format(params);
+            if (!tempBuffer.equals("Impossible {1} has occurred -- status code is 7 and message is {2}."))
+                errln("Tests arguments < substitution failed. Formatted text=" +
+                      "<" + tempBuffer + ">");
+            logln("Formatted with 7 : " + tempBuffer);
+            ParsePosition status = new ParsePosition(0);
+            Object[] objs = messageFormatter.parse(tempBuffer, status);
+            if (objs[params.length] != null)
+                errln("Parse failed with more than expected arguments");
+            for (int i = 0; i < objs.length; i++) {
+                if (objs[i] != null && !objs[i].toString().equals(params[i].toString())) {
+                    errln("Parse failed on object " + objs[i] + " at index : " + i);
+                }
+            }
+            tempBuffer = messageFormatter.format(null);
+            if (!tempBuffer.equals("Impossible {1} has occurred -- status code is {0} and message is {2}."))
+                errln("Tests with no arguments failed");
+            logln("Formatted with null : " + tempBuffer);
+            logln("Apply with pattern : " + pattern2);
+            messageFormatter.applyPattern(pattern2);
+            tempBuffer = messageFormatter.format(params);
+            if (!tempBuffer.equals("Double ' Quotes 7 test and quoted {1} test plus other {2} stuff."))
+                errln("quote format test (w/ params) failed.");
+            logln("Formatted with params : " + tempBuffer);
+            tempBuffer = messageFormatter.format(null);
+            if (!tempBuffer.equals("Double ' Quotes {0} test and quoted {1} test plus other {2} stuff."))
+                errln("quote format test (w/ null) failed.");
+            logln("Formatted with null : " + tempBuffer);
+            logln("toPattern : " + messageFormatter.toPattern());
+        } catch (Exception foo) {
+            errln("Exception when formatting in bug 4031438. "+foo.getMessage());
+        }
+    }
+    public void Test4052223()
+    {
+        ParsePosition pos = new ParsePosition(0);
+        if (pos.getErrorIndex() != -1) {
+            errln("ParsePosition.getErrorIndex initialization failed.");
+        }
+        MessageFormat fmt = new MessageFormat("There are {0} apples growing on the {1} tree.");
+        String str = new String("There is one apple growing on the peach tree.");
+        Object[] objs = fmt.parse(str, pos);
+        logln("unparsable string , should fail at " + pos.getErrorIndex());
+        if (pos.getErrorIndex() == -1)
+            errln("Bug 4052223 failed : parsing string " + str);
+        pos.setErrorIndex(4);
+        if (pos.getErrorIndex() != 4)
+            errln("setErrorIndex failed, got " + pos.getErrorIndex() + " instead of 4");
+        ChoiceFormat f = new ChoiceFormat(
+            "-1#are negative|0#are no or fraction|1#is one|1.0<is 1+|2#are two|2<are more than 2.");
+        pos.setIndex(0); pos.setErrorIndex(-1);
+        Number obj = f.parse("are negative", pos);
+        if (pos.getErrorIndex() != -1 && obj.doubleValue() == -1.0)
+            errln("Parse with \"are negative\" failed, at " + pos.getErrorIndex());
+        pos.setIndex(0); pos.setErrorIndex(-1);
+        obj = f.parse("are no or fraction ", pos);
+        if (pos.getErrorIndex() != -1 && obj.doubleValue() == 0.0)
+            errln("Parse with \"are no or fraction\" failed, at " + pos.getErrorIndex());
+        pos.setIndex(0); pos.setErrorIndex(-1);
+        obj = f.parse("go postal", pos);
+        if (pos.getErrorIndex() == -1 && !Double.isNaN(obj.doubleValue()))
+            errln("Parse with \"go postal\" failed, at " + pos.getErrorIndex());
+    }
+    /* @bug 4104976
+     * ChoiceFormat.equals(null) throws NullPointerException
+     */
+    public void Test4104976()
+    {
+        double[] limits = {1, 20};
+        String[] formats = {"xyz", "abc"};
+        ChoiceFormat cf = new ChoiceFormat(limits, formats);
+        try {
+            log("Compares to null is always false, returned : ");
+            logln(cf.equals(null) ? "TRUE" : "FALSE");
+        } catch (Exception foo) {
+            errln("ChoiceFormat.equals(null) throws exception.");
+        }
+    }
+    /* @bug 4106659
+     * ChoiceFormat.ctor(double[], String[]) doesn't check
+     * whether lengths of input arrays are equal.
+     */
+    public void Test4106659()
+    {
+        double[] limits = {1, 2, 3};
+        String[] formats = {"one", "two"};
+        ChoiceFormat cf = null;
+        try {
+            cf = new ChoiceFormat(limits, formats);
+        } catch (Exception foo) {
+            logln("ChoiceFormat constructor should check for the array lengths");
+            cf = null;
+        }
+        if (cf != null) errln(cf.format(5));
+    }
+
+    /* @bug 4106660
+     * ChoiceFormat.ctor(double[], String[]) allows unordered double array.
+     * This is not a bug, added javadoc to emphasize the use of limit
+     * array must be in ascending order.
+     */
+    public void Test4106660()
+    {
+        double[] limits = {3, 1, 2};
+        String[] formats = {"Three", "One", "Two"};
+        ChoiceFormat cf = new ChoiceFormat(limits, formats);
+        double d = 5.0;
+        String str = cf.format(d);
+        if (!str.equals("Two"))
+            errln("format(" + d + ") = " + cf.format(d));
+    }
+
+    /* @bug 4111739
+     * MessageFormat is incorrectly serialized/deserialized.
+     */
+    public void Test4111739()
+    {
+        MessageFormat format1 = null;
+        MessageFormat format2 = null;
+        ObjectOutputStream ostream = null;
+        ByteArrayOutputStream baos = null;
+        ObjectInputStream istream = null;
+
+        try {
+            baos = new ByteArrayOutputStream();
+            ostream = new ObjectOutputStream(baos);
+        } catch(IOException e) {
+            errln("Unexpected exception : " + e.getMessage());
+            return;
+        }
+
+        try {
+            format1 = new MessageFormat("pattern{0}");
+            ostream.writeObject(format1);
+            ostream.flush();
+
+            byte bytes[] = baos.toByteArray();
+
+            istream = new ObjectInputStream(new ByteArrayInputStream(bytes));
+            format2 = (MessageFormat)istream.readObject();
+        } catch(Exception e) {
+            errln("Unexpected exception : " + e.getMessage());
+        }
+
+        if (!format1.equals(format2)) {
+            errln("MessageFormats before and after serialization are not" +
+                " equal\nformat1 = " + format1 + "(" + format1.toPattern() + ")\nformat2 = " +
+                format2 + "(" + format2.toPattern() + ")");
+        } else {
+            logln("Serialization for MessageFormat is OK.");
+        }
+    }
+    /* @bug 4114743
+     * MessageFormat.applyPattern allows illegal patterns.
+     */
+    public void Test4114743()
+    {
+        String originalPattern = "initial pattern";
+        MessageFormat mf = new MessageFormat(originalPattern);
+        try {
+            String illegalPattern = "ab { '}' de";
+            mf.applyPattern(illegalPattern);
+            errln("illegal pattern: \"" + illegalPattern + "\"");
+        } catch (IllegalArgumentException foo) {
+            if (!originalPattern.equals(mf.toPattern()))
+                errln("pattern after: \"" + mf.toPattern() + "\"");
+        }
+    }
+
+    /* @bug 4116444
+     * MessageFormat.parse has different behavior in case of null.
+     */
+    public void Test4116444()
+    {
+        String[] patterns = {"", "one", "{0,date,short}"};
+        MessageFormat mf = new MessageFormat("");
+
+        for (int i = 0; i < patterns.length; i++) {
+            String pattern = patterns[i];
+            mf.applyPattern(pattern);
+            try {
+                Object[] array = mf.parse(null, new ParsePosition(0));
+                logln("pattern: \"" + pattern + "\"");
+                log(" parsedObjects: ");
+                if (array != null) {
+                    log("{");
+                    for (int j = 0; j < array.length; j++) {
+                        if (array[j] != null)
+                            err("\"" + array[j].toString() + "\"");
+                        else
+                            log("null");
+                        if (j < array.length - 1) log(",");
+                    }
+                    log("}") ;
+                } else {
+                    log("null");
+                }
+                logln("");
+            } catch (Exception e) {
+                errln("pattern: \"" + pattern + "\"");
+                errln("  Exception: " + e.getMessage());
+            }
+        }
+
+    }
+    /* @bug 4114739 (FIX and add javadoc)
+     * MessageFormat.format has undocumented behavior about empty format objects.
+     */
+    public void Test4114739()
+    {
+
+        MessageFormat mf = new MessageFormat("<{0}>");
+        Object[] objs1 = null;
+        Object[] objs2 = {};
+        Object[] objs3 = {null};
+        try {
+            logln("pattern: \"" + mf.toPattern() + "\"");
+            log("format(null) : ");
+            logln("\"" + mf.format(objs1) + "\"");
+            log("format({})   : ");
+            logln("\"" + mf.format(objs2) + "\"");
+            log("format({null}) :");
+            logln("\"" + mf.format(objs3) + "\"");
+        } catch (Exception e) {
+            errln("Exception thrown for null argument tests.");
+        }
+    }
+
+    /* @bug 4113018
+     * MessageFormat.applyPattern works wrong with illegal patterns.
+     */
+    public void Test4113018()
+    {
+        String originalPattern = "initial pattern";
+        MessageFormat mf = new MessageFormat(originalPattern);
+        String illegalPattern = "format: {0, xxxYYY}";
+        logln("pattern before: \"" + mf.toPattern() + "\"");
+        logln("illegal pattern: \"" + illegalPattern + "\"");
+        try {
+            mf.applyPattern(illegalPattern);
+            errln("Should have thrown IllegalArgumentException for pattern : " + illegalPattern);
+        } catch (IllegalArgumentException e) {
+            if (!originalPattern.equals(mf.toPattern()))
+                errln("pattern after: \"" + mf.toPattern() + "\"");
+        }
+    }
+    /* @bug 4106661
+     * ChoiceFormat is silent about the pattern usage in javadoc.
+     */
+    public void Test4106661()
+    {
+        ChoiceFormat fmt = new ChoiceFormat(
+          "-1#are negative| 0#are no or fraction | 1#is one |1.0<is 1+ |2#are two |2<are more than 2.");
+        logln("Formatter Pattern : " + fmt.toPattern());
+
+        logln("Format with -INF : " + fmt.format(Double.NEGATIVE_INFINITY));
+        logln("Format with -1.0 : " + fmt.format(-1.0));
+        logln("Format with 0 : " + fmt.format(0));
+        logln("Format with 0.9 : " + fmt.format(0.9));
+        logln("Format with 1.0 : " + fmt.format(1));
+        logln("Format with 1.5 : " + fmt.format(1.5));
+        logln("Format with 2 : " + fmt.format(2));
+        logln("Format with 2.1 : " + fmt.format(2.1));
+        logln("Format with NaN : " + fmt.format(Double.NaN));
+        logln("Format with +INF : " + fmt.format(Double.POSITIVE_INFINITY));
+    }
+    /* @bug 4094906
+     * ChoiceFormat should accept \u221E as eq. to INF.
+     */
+    public void Test4094906()
+    {
+        ChoiceFormat fmt = new ChoiceFormat(
+          "-\u221E<are negative|0<are no or fraction|1#is one|1.0<is 1+|\u221E<are many.");
+        if (!fmt.toPattern().startsWith("-\u221E<are negative|0.0<are no or fraction|1.0#is one|1.0<is 1+|\u221E<are many."))
+            errln("Formatter Pattern : " + fmt.toPattern());
+        logln("Format with -INF : " + fmt.format(Double.NEGATIVE_INFINITY));
+        logln("Format with -1.0 : " + fmt.format(-1.0));
+        logln("Format with 0 : " + fmt.format(0));
+        logln("Format with 0.9 : " + fmt.format(0.9));
+        logln("Format with 1.0 : " + fmt.format(1));
+        logln("Format with 1.5 : " + fmt.format(1.5));
+        logln("Format with 2 : " + fmt.format(2));
+        logln("Format with +INF : " + fmt.format(Double.POSITIVE_INFINITY));
+    }
+
+    /* @bug 4118592
+     * MessageFormat.parse fails with ChoiceFormat.
+     */
+    public void Test4118592()
+    {
+        MessageFormat mf = new MessageFormat("");
+        String pattern = "{0,choice,1#YES|2#NO}";
+        String prefix = "";
+        for (int i = 0; i < 5; i++) {
+            String formatted = prefix + "YES";
+            mf.applyPattern(prefix + pattern);
+            prefix += "x";
+            Object[] objs = mf.parse(formatted, new ParsePosition(0));
+            logln(i + ". pattern :\"" + mf.toPattern() + "\"");
+            log(" \"" + formatted + "\" parsed as ");
+            if (objs == null) logln("  null");
+            else logln("  " + objs[0]);
+        }
+    }
+    /* @bug 4118594
+     * MessageFormat.parse fails for some patterns.
+     */
+    public void Test4118594()
+    {
+        MessageFormat mf = new MessageFormat("{0}, {0}, {0}");
+        String forParsing = "x, y, z";
+        Object[] objs = mf.parse(forParsing, new ParsePosition(0));
+        logln("pattern: \"" + mf.toPattern() + "\"");
+        logln("text for parsing: \"" + forParsing + "\"");
+        if (!objs[0].toString().equals("z"))
+            errln("argument0: \"" + objs[0] + "\"");
+        mf.setLocale(Locale.US);
+        mf.applyPattern("{0,number,#.##}, {0,number,#.#}");
+        Object[] oldobjs = {new Double(3.1415)};
+        String result = mf.format( oldobjs );
+        logln("pattern: \"" + mf.toPattern() + "\"");
+        logln("text for parsing: \"" + result + "\"");
+        // result now equals "3.14, 3.1"
+        if (!result.equals("3.14, 3.1"))
+            errln("result = " + result);
+        Object[] newobjs = mf.parse(result, new ParsePosition(0));
+        // newobjs now equals {new Double(3.1)}
+        if (((Double)newobjs[0]).doubleValue() != 3.1)
+            errln( "newobjs[0] = " + newobjs[0]);
+    }
+    /* @bug 4105380
+     * When using ChoiceFormat, MessageFormat is not good for I18n.
+     */
+    public void Test4105380()
+    {
+        String patternText1 = "The disk \"{1}\" contains {0}.";
+        String patternText2 = "There are {0} on the disk \"{1}\"";
+        MessageFormat form1 = new MessageFormat(patternText1);
+        MessageFormat form2 = new MessageFormat(patternText2);
+        double[] filelimits = {0,1,2};
+        String[] filepart = {"no files","one file","{0,number} files"};
+        ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart);
+        form1.setFormat(1, fileform);
+        form2.setFormat(0, fileform);
+        Object[] testArgs = {new Long(12373), "MyDisk"};
+        logln(form1.format(testArgs));
+        logln(form2.format(testArgs));
+    }
+    /* @bug 4120552
+     * MessageFormat.parse incorrectly sets errorIndex.
+     */
+    public void Test4120552()
+    {
+        MessageFormat mf = new MessageFormat("pattern");
+        String texts[] = {"pattern", "pat", "1234"};
+        logln("pattern: \"" + mf.toPattern() + "\"");
+        for (int i = 0; i < texts.length; i++) {
+            ParsePosition pp = new ParsePosition(0);
+            Object[] objs = mf.parse(texts[i], pp);
+            log("  text for parsing: \"" + texts[i] + "\"");
+            if (objs == null) {
+                logln("  (incorrectly formatted string)");
+                if (pp.getErrorIndex() == -1)
+                    errln("Incorrect error index: " + pp.getErrorIndex());
+            } else {
+                logln("  (correctly formatted string)");
+            }
+        }
+    }
+
+    /**
+     * @bug 4142938
+     * MessageFormat handles single quotes in pattern wrong.
+     * This is actually a problem in ChoiceFormat; it doesn't
+     * understand single quotes.
+     */
+    public void Test4142938() {
+        String pat = "''Vous'' {0,choice,0#n''|1#}avez s\u00E9lectionne\u00E9 " +
+            "{0,choice,0#aucun|1#{0}} client{0,choice,0#s|1#|2#s} " +
+            "personnel{0,choice,0#s|1#|2#s}.";
+        MessageFormat mf = new MessageFormat(pat);
+
+        String[] PREFIX = {
+            "'Vous' n'avez s\u00E9lectionne\u00E9 aucun clients personnels.",
+            "'Vous' avez s\u00E9lectionne\u00E9 ",
+            "'Vous' avez s\u00E9lectionne\u00E9 "
+        };
+        String[] SUFFIX = {
+            null,
+            " client personnel.",
+            " clients personnels."
+        };
+
+        for (int i=0; i<3; i++) {
+            String out = mf.format(new Object[]{new Integer(i)});
+            if (SUFFIX[i] == null) {
+                if (!out.equals(PREFIX[i]))
+                    errln("" + i + ": Got \"" + out + "\"; Want \"" + PREFIX[i] + "\"");
+            }
+            else {
+                if (!out.startsWith(PREFIX[i]) ||
+                    !out.endsWith(SUFFIX[i]))
+                    errln("" + i + ": Got \"" + out + "\"; Want \"" + PREFIX[i] + "\"...\"" +
+                          SUFFIX[i] + "\"");
+            }
+        }
+    }
+
+    /**
+     * @bug 4142938
+     * Test the applyPattern and toPattern handling of single quotes
+     * by ChoiceFormat.  (This is in here because this was a bug reported
+     * against MessageFormat.)  The single quote is used to quote the
+     * pattern characters '|', '#', '<', and '\u2264'.  Two quotes in a row
+     * is a quote literal.
+     */
+    public void TestChoicePatternQuote() {
+        String[] DATA = {
+            // Pattern                  0 value           1 value
+            "0#can''t|1#can",           "can't",          "can",
+            "0#'pound(#)=''#'''|1#xyz", "pound(#)='#'",   "xyz",
+            "0#'1<2 | 1\u22641'|1#''",  "1<2 | 1\u22641", "'",
+        };
+        for (int i=0; i<DATA.length; i+=3) {
+            try {
+                ChoiceFormat cf = new ChoiceFormat(DATA[i]);
+                for (int j=0; j<=1; ++j) {
+                    String out = cf.format(j);
+                    if (!out.equals(DATA[i+1+j]))
+                        errln("Fail: Pattern \"" + DATA[i] + "\" x "+j+" -> " +
+                              out + "; want \"" + DATA[i+1+j] + '"');
+                }
+                String pat = cf.toPattern();
+                String pat2 = new ChoiceFormat(pat).toPattern();
+                if (!pat.equals(pat2))
+                    errln("Fail: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + '"');
+                else
+                    logln("Ok: Pattern \"" + DATA[i] + "\" x toPattern -> \"" + pat + '"');
+            }
+            catch (IllegalArgumentException e) {
+                errln("Fail: Pattern \"" + DATA[i] + "\" -> " + e);
+            }
+        }
+    }
+
+    /**
+     * @bug 4112104
+     * MessageFormat.equals(null) throws a NullPointerException.  The JLS states
+     * that it should return false.
+     */
+    public void Test4112104() {
+        MessageFormat format = new MessageFormat("");
+        try {
+            // This should NOT throw an exception
+            if (format.equals(null)) {
+                // It also should return false
+                errln("MessageFormat.equals(null) returns false");
+            }
+        }
+        catch (NullPointerException e) {
+            errln("MessageFormat.equals(null) throws " + e);
+        }
+    }
+
+    /**
+     * @bug 4169959
+     * MessageFormat does not format null objects. CANNOT REPRODUCE THIS BUG.
+     */
+    public void Test4169959() {
+        // This works
+        logln(MessageFormat.format( "This will {0}",
+                                    new String[]{"work"} ) );
+
+        // This fails
+        logln(MessageFormat.format( "This will {0}",
+                                    new Object[]{ null } ) );
+    }
+
+    public void test4232154() {
+        boolean gotException = false;
+        try {
+            MessageFormat format = new MessageFormat("The date is {0:date}");
+        } catch (Exception e) {
+            gotException = true;
+            if (!(e instanceof IllegalArgumentException)) {
+                throw new RuntimeException("got wrong exception type");
+            }
+            if ("argument number too large at ".equals(e.getMessage())) {
+                throw new RuntimeException("got wrong exception message");
+            }
+        }
+        if (!gotException) {
+            throw new RuntimeException("didn't get exception for invalid input");
+        }
+    }
+
+    public void test4293229() {
+        MessageFormat format = new MessageFormat("'''{'0}'' '''{0}'''");
+        Object[] args = { null };
+        String expected = "'{0}' '{0}'";
+        String result = format.format(args);
+        if (!result.equals(expected)) {
+            throw new RuntimeException("wrong format result - expected \"" +
+                    expected + "\", got \"" + result + "\"");
+        }
+    }
+}