1 /*
2  * Written by Doug Lea with assistance from members of JCP JSR-166
3  * Expert Group and released to the public domain, as explained at
4  * http://creativecommons.org/publicdomain/zero/1.0/
5  */
6 
7 package java.util.concurrent;
8 
9 /**
10  * Exception indicating that the result of a value-producing task,
11  * such as a {@link FutureTask}, cannot be retrieved because the task
12  * was cancelled.
13  *
14  * @since 1.5
15  * @author Doug Lea
16  */
17 public class CancellationException extends IllegalStateException {
18     private static final long serialVersionUID = -9202173006928992231L;
19 
20     /**
21      * Constructs a {@code CancellationException} with no detail message.
22      */
CancellationException()23     public CancellationException() {}
24 
25     /**
26      * Constructs a {@code CancellationException} with the specified detail
27      * message.
28      *
29      * @param message the detail message
30      */
CancellationException(String message)31     public CancellationException(String message) {
32         super(message);
33     }
34 }
35