1 /* Copyright (c) 2000-2003, jMock.org. See bundled LICENSE.txt */
2 package org.jmock.constraint;
3
4 import org.jmock.Constraint;
5
6 /***
7 * Is the value null?
8 */
9 public class IsNull implements Constraint {
10 public IsNull() {
11 }
12
13 public boolean eval(Object o) {
14 return o == null;
15 }
16
17 public String toString() {
18 return "null";
19 }
20 }
21
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