1 /*
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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
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22  */
23 
24 /**
25  * @test
26  * @bug 4990596
27  * @summary Make sure that any subclass of Number can be formatted using DecimalFormat.format().
28  */
29 
30 import java.text.DecimalFormat;
31 
32 public class Bug4990596 {
33 
main(String[] args)34     public static void main(String[] args) {
35         new DecimalFormat().format(new MutableInteger(0));
36     }
37 
38     public static class MutableInteger extends Number {
39         public int value;
40 
MutableInteger()41         public MutableInteger() {
42         }
MutableInteger(int value)43         public MutableInteger(int value) {
44             this.value = value;
45         }
doubleValue()46         public double doubleValue() {
47             return this.value;
48         }
floatValue()49         public float floatValue() {
50             return this.value;
51         }
intValue()52         public int intValue() {
53             return this.value;
54         }
longValue()55         public long longValue() {
56             return this.value;
57         }
58     }
59 }
60