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8  * particular file as subject to the "Classpath" exception as provided
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24  */
25 
26 package java.security;
27 
28 /**
29  * <p> This exception is thrown by the AccessController to indicate
30  * that a requested access (to a critical system resource such as the
31  * file system or the network) is denied.
32  *
33  * <p> The reason to deny access can vary.  For example, the requested
34  * permission might be of an incorrect type,  contain an invalid
35  * value, or request access that is not allowed according to the
36  * security policy.  Such information should be given whenever
37  * possible at the time the exception is thrown.
38  *
39  * @author Li Gong
40  * @author Roland Schemers
41  */
42 
43 public class AccessControlException extends SecurityException {
44 
45     private static final long serialVersionUID = 5138225684096988535L;
46 
47     // the permission that caused the exception to be thrown.
48     private Permission perm;
49 
50     /**
51      * Constructs an {@code AccessControlException} with the
52      * specified, detailed message.
53      *
54      * @param   s   the detail message.
55      */
AccessControlException(String s)56     public AccessControlException(String s) {
57         super(s);
58     }
59 
60     /**
61      * Constructs an {@code AccessControlException} with the
62      * specified, detailed message, and the requested permission that caused
63      * the exception.
64      *
65      * @param   s   the detail message.
66      * @param   p   the permission that caused the exception.
67      */
AccessControlException(String s, Permission p)68     public AccessControlException(String s, Permission p) {
69         super(s);
70         perm = p;
71     }
72 
73     /**
74      * Gets the Permission object associated with this exception, or
75      * null if there was no corresponding Permission object.
76      *
77      * @return the Permission object.
78      */
getPermission()79     public Permission getPermission() {
80         return perm;
81     }
82 }
83