diff --git a/src/java.base/share/classes/java/text/ChoiceFormat.java b/src/java.base/share/classes/java/text/ChoiceFormat.java
index 883c8b5d46b..1252efe33b5 100644
--- a/src/java.base/share/classes/java/text/ChoiceFormat.java
+++ b/src/java.base/share/classes/java/text/ChoiceFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2024, 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
@@ -614,6 +614,17 @@ public class ChoiceFormat extends NumberFormat {
         return result;
     }
 
+    /**
+     * {@return a string identifying this {@code ChoiceFormat}, for debugging}
+     */
+    @Override
+    public String toString() {
+        return
+            """
+            ChoiceFormat [pattern: "%s"]
+            """.formatted(toPattern());
+    }
+
     /**
      * Compares the specified object with this {@code ChoiceFormat} for equality.
      * Returns true if the object is also a {@code ChoiceFormat} and the
diff --git a/src/java.base/share/classes/java/text/CompactNumberFormat.java b/src/java.base/share/classes/java/text/CompactNumberFormat.java
index 3926a807b41..1bda7855fba 100644
--- a/src/java.base/share/classes/java/text/CompactNumberFormat.java
+++ b/src/java.base/share/classes/java/text/CompactNumberFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2024, 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
@@ -2391,6 +2391,17 @@ public final class CompactNumberFormat extends NumberFormat {
                 + Boolean.hashCode(parseBigDecimal);
     }
 
+    /**
+     * {@return a string identifying this {@code CompactNumberFormat}, for debugging}
+     */
+    @Override
+    public String toString() {
+        return
+            """
+            CompactNumberFormat [locale: "%s", decimal pattern: "%s", compact patterns: "%s"]
+            """.formatted(symbols.getLocale().getDisplayName(), decimalPattern, Arrays.toString(compactPatterns));
+    }
+
     /**
      * Creates and returns a copy of this {@code CompactNumberFormat}
      * instance.
diff --git a/src/java.base/share/classes/java/text/DecimalFormat.java b/src/java.base/share/classes/java/text/DecimalFormat.java
index 23c20266f41..a94e7ec5981 100644
--- a/src/java.base/share/classes/java/text/DecimalFormat.java
+++ b/src/java.base/share/classes/java/text/DecimalFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2024, 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
@@ -2996,6 +2996,17 @@ public class DecimalFormat extends NumberFormat {
         // just enough fields for a reasonable distribution
     }
 
+    /**
+     * {@return a string identifying this {@code DecimalFormat}, for debugging}
+     */
+    @Override
+    public String toString() {
+        return
+            """
+            DecimalFormat [locale: "%s", pattern: "%s"]
+            """.formatted(symbols.getLocale().getDisplayName(), toPattern());
+    }
+
     /**
      * Synthesizes a pattern string that represents the current state
      * of this Format object.
diff --git a/src/java.base/share/classes/java/text/ListFormat.java b/src/java.base/share/classes/java/text/ListFormat.java
index cd26f68bf46..bc155605934 100644
--- a/src/java.base/share/classes/java/text/ListFormat.java
+++ b/src/java.base/share/classes/java/text/ListFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2023, 2024, 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
@@ -530,7 +530,7 @@ public final class ListFormat extends Format {
     }
 
     /**
-     * {@inheritDoc}
+     * {@return a string identifying this {@code ListFormat}, for debugging}
      */
     @Override
     public String toString() {
diff --git a/src/java.base/share/classes/java/text/MessageFormat.java b/src/java.base/share/classes/java/text/MessageFormat.java
index 1f265c63da8..fea896281c8 100644
--- a/src/java.base/share/classes/java/text/MessageFormat.java
+++ b/src/java.base/share/classes/java/text/MessageFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2024, 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
@@ -1184,6 +1184,17 @@ public class MessageFormat extends Format {
         return pattern.hashCode(); // enough for reasonable distribution
     }
 
+    /**
+     * {@return a string identifying this {@code MessageFormat}, for debugging}
+     */
+    @Override
+    public String toString() {
+        return
+            """
+            MessageFormat [locale: %s, pattern: "%s"]
+            """.formatted(locale == null ? null : '"' + locale.getDisplayName() + '"', toPattern());
+    }
+
 
     /**
      * Defines constants that are used as attribute keys in the
diff --git a/src/java.base/share/classes/java/text/SimpleDateFormat.java b/src/java.base/share/classes/java/text/SimpleDateFormat.java
index ee6ff005c49..d2f71bd7751 100644
--- a/src/java.base/share/classes/java/text/SimpleDateFormat.java
+++ b/src/java.base/share/classes/java/text/SimpleDateFormat.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1996, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1996, 2024, 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
@@ -2422,6 +2422,17 @@ public class SimpleDateFormat extends DateFormat {
         // just enough fields for a reasonable distribution
     }
 
+    /**
+     * {@return a string identifying this {@code SimpleDateFormat}, for debugging}
+     */
+    @Override
+    public String toString() {
+        return
+            """
+            SimpleDateFormat [locale: %s, pattern: "%s"]
+            """.formatted(locale == null ? null : '"' + locale.getDisplayName() + '"', toPattern());
+    }
+
     /**
      * Compares the specified object with this {@code SimpleDateFormat} for equality.
      * Returns true if the object is also a {@code SimpleDateFormat} and the
diff --git a/test/jdk/java/text/Format/ChoiceFormat/ToStringTest.java b/test/jdk/java/text/Format/ChoiceFormat/ToStringTest.java
new file mode 100644
index 00000000000..4b6c84a0cb2
--- /dev/null
+++ b/test/jdk/java/text/Format/ChoiceFormat/ToStringTest.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.text.ChoiceFormat;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value. There is no null locale test as
+    // ChoiceFormat is not localized.
+    @Test
+    public void normalValueTest() {
+        String expectedStr = "ChoiceFormat [pattern: \"1.0#foo\"]\n";
+        var c = new ChoiceFormat("1.0#foo");
+        assertEquals(expectedStr, c.toString());
+    }
+
+    // Ensure toString throws no exception when ChoiceFormat is created
+    // with empty arrays
+    @Test
+    public void oddValueTest() {
+        var c2 = new ChoiceFormat(new double[]{}, new String[]{});
+        System.out.println(c2);
+    }
+}
diff --git a/test/jdk/java/text/Format/CompactNumberFormat/ToStringTest.java b/test/jdk/java/text/Format/CompactNumberFormat/ToStringTest.java
new file mode 100644
index 00000000000..29ac0edef80
--- /dev/null
+++ b/test/jdk/java/text/Format/CompactNumberFormat/ToStringTest.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.text.CompactNumberFormat;
+import java.text.DecimalFormatSymbols;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value. There is no null test as the getInstance
+    // methods and constructor (which takes DFS) throw NPE if the locale param is null.
+    @Test
+    public void expectedValueTest() {
+        String expectedStr = "CompactNumberFormat [locale: \"English (Canada)\", decimal pattern: \"#,##0.###\", compact patterns: \"[, , , {one:0' 'thousand other:0' 'thousand}, {one:00' 'thousand other:00' 'thousand}, {one:000' 'thousand other:000' 'thousand}, {one:0' 'million other:0' 'million}, {one:00' 'million other:00' 'million}, {one:000' 'million other:000' 'million}, {one:0' 'billion other:0' 'billion}, {one:00' 'billion other:00' 'billion}, {one:000' 'billion other:000' 'billion}, {one:0' 'trillion other:0' 'trillion}, {one:00' 'trillion other:00' 'trillion}, {one:000' 'trillion other:000' 'trillion}]\"]\n";
+        var c = NumberFormat.getCompactNumberInstance(Locale.CANADA, NumberFormat.Style.LONG);
+        assertEquals(expectedStr, c.toString());
+    }
+
+    // Check an odd value with empty decimal pattern and compact patterns.
+    @Test
+    public void oddValueTest() {
+        String expectedStr = "CompactNumberFormat [locale: \"English (Canada)\", decimal pattern: \"\", compact patterns: \"[]\"]\n";
+        var c = new CompactNumberFormat("", new DecimalFormatSymbols(Locale.CANADA), new String[]{});
+        assertEquals(expectedStr, c.toString());
+    }
+}
diff --git a/test/jdk/java/text/Format/DateFormat/ToStringTest.java b/test/jdk/java/text/Format/DateFormat/ToStringTest.java
new file mode 100644
index 00000000000..4a210f12d5d
--- /dev/null
+++ b/test/jdk/java/text/Format/DateFormat/ToStringTest.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @library /java/text/testlib
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.text.DateFormat;
+import java.text.DateFormatSymbols;
+import java.text.SimpleDateFormat;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value
+    @Test
+    public void normalValueTest() {
+        String expectedStr =
+                "SimpleDateFormat [locale: \"English (Canada)\", pattern: \"MMM d, y\"]\n";
+        var s = DateFormat.getDateInstance(DateFormat.DEFAULT, Locale.CANADA);
+        assertEquals(expectedStr, s.toString());
+    }
+
+    // Check an odd value. SimpleDateFormat constructor that takes DFS, will use
+    // the default locale, not the locale from the DFS.
+    @Test
+    public void oddValueTest() {
+        String expectedStr =
+                "SimpleDateFormat [locale: \"" + Locale.getDefault().getDisplayName() + "\", pattern: \"MMM d, y\"]\n";
+        var s = new SimpleDateFormat("MMM d, y", new DateFormatSymbols(Locale.JAPAN));
+        assertEquals(expectedStr, s.toString());
+    }
+
+
+    // Check the expected value when the locale is null. This is only possible
+    // via an older SimpleDateFormat that was deserialized. The current constructor
+    // will throw NPE if locale is null.
+    @Test
+    public void nullLocaleTest() {
+        String expectedStr =
+                "SimpleDateFormat [locale: null, pattern: \"yyyy.MM.dd E hh.mm.ss zzz\"]\n";
+        // Borrowed from DateFormatSymbolsSerializationTest
+        SimpleDateFormat s;
+        try (InputStream is = HexDumpReader.getStreamFromHexDump("SDFserialized.ser.txt");
+             ObjectInputStream iStream = new ObjectInputStream(is)) {
+            s = (SimpleDateFormat)iStream.readObject();
+            assertEquals(expectedStr, s.toString());
+        } catch (Exception e) {
+            System.out.println("Error building stream from deserialized simple date format");
+        }
+    }
+}
diff --git a/test/jdk/java/text/Format/DecimalFormat/ToStringTest.java b/test/jdk/java/text/Format/DecimalFormat/ToStringTest.java
new file mode 100644
index 00000000000..ecbd5000a2b
--- /dev/null
+++ b/test/jdk/java/text/Format/DecimalFormat/ToStringTest.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.text.DecimalFormat;
+import java.text.DecimalFormatSymbols;
+import java.text.NumberFormat;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value. There is no null locale test as
+    // DecimalFormatSymbols will throw an exception when created with a null locale.
+    @Test
+    public void expectedValueTest() {
+        String expectedStr =
+                "DecimalFormat [locale: \"English (Canada)\", pattern: \"foo#00.00bar\"]\n";
+        var d = new DecimalFormat("foo#00.00bar", new DecimalFormatSymbols(Locale.CANADA));
+        assertEquals(expectedStr, d.toString());
+
+        String expectedStr2 =
+                "DecimalFormat [locale: \"English (Canada)\", pattern: \"#,##0.###\"]\n";
+        var d2 = NumberFormat.getInstance(Locale.CANADA);
+        assertEquals(expectedStr2, d2.toString());
+    }
+}
diff --git a/test/jdk/java/text/Format/ListFormat/ToStringTest.java b/test/jdk/java/text/Format/ListFormat/ToStringTest.java
new file mode 100644
index 00000000000..a8a1e127f84
--- /dev/null
+++ b/test/jdk/java/text/Format/ListFormat/ToStringTest.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.text.ListFormat;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value. There is no null test as the getInstance
+    // methods throw NPE if any arguments are null.
+    @Test
+    public void expectedValueTest() {
+        String expectedStr =
+                "ListFormat [locale: \"English (Canada)\", start: \"{0}, {1}\", middle: \"{0}, {1}\", end: \"{0} and {1}\", two: \"{0} and {1}\", three: \"{0}, {1} and {2}\"]\n";
+        var l = ListFormat.getInstance(Locale.CANADA, ListFormat.Type.STANDARD, ListFormat.Style.FULL);
+        assertEquals(expectedStr, l.toString());
+    }
+}
diff --git a/test/jdk/java/text/Format/MessageFormat/ToStringTest.java b/test/jdk/java/text/Format/MessageFormat/ToStringTest.java
new file mode 100644
index 00000000000..01eaf7dd353
--- /dev/null
+++ b/test/jdk/java/text/Format/MessageFormat/ToStringTest.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2024, 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 8321545
+ * @summary Ensure value returned by overridden toString method is as expected
+ * @run junit ToStringTest
+ */
+
+import java.text.MessageFormat;
+import java.util.Locale;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class ToStringTest {
+
+    // Check a normal expected value
+    @Test
+    public void expectedValueTest() {
+        String expectedStr =
+                "MessageFormat [locale: \"English (Canada)\", pattern: \"foo {0}\"]\n";
+        var m = new MessageFormat("foo {0}", Locale.CANADA);
+        assertEquals(expectedStr, m.toString());
+    }
+
+    // Check the expected value when the locale is null
+    @Test
+    public void nullLocaleTest() {
+        String expectedStr =
+                "MessageFormat [locale: null, pattern: \"foo {0}\"]\n";
+        var m = new MessageFormat("foo {0}", null);
+        assertEquals(expectedStr, m.toString());
+    }
+}