rt/emul/compact/src/main/java/java/security/PrivilegedActionException.java
author Jaroslav Tulach <jtulach@netbeans.org>
Thu, 03 Oct 2013 15:40:35 +0200
branchjdk7-b147
changeset 1334 588d5bf7a560
permissions -rw-r--r--
Set of JDK classes needed to run javac
     1 /*
     2  * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.  Oracle designates this
     8  * particular file as subject to the "Classpath" exception as provided
     9  * by Oracle in the LICENSE file that accompanied this code.
    10  *
    11  * This code is distributed in the hope that it will be useful, but WITHOUT
    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14  * version 2 for more details (a copy is included in the LICENSE file that
    15  * accompanied this code).
    16  *
    17  * You should have received a copy of the GNU General Public License version
    18  * 2 along with this work; if not, write to the Free Software Foundation,
    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    20  *
    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    22  * or visit www.oracle.com if you need additional information or have any
    23  * questions.
    24  */
    25 
    26 package java.security;
    27 
    28 /**
    29  * This exception is thrown by
    30  * <code>doPrivileged(PrivilegedExceptionAction)</code> and
    31  * <code>doPrivileged(PrivilegedExceptionAction,
    32  * AccessControlContext context)</code> to indicate
    33  * that the action being performed threw a checked exception.  The exception
    34  * thrown by the action can be obtained by calling the
    35  * <code>getException</code> method.  In effect, an
    36  * <code>PrivilegedActionException</code> is a "wrapper"
    37  * for an exception thrown by a privileged action.
    38  *
    39  * <p>As of release 1.4, this exception has been retrofitted to conform to
    40  * the general purpose exception-chaining mechanism.  The "exception thrown
    41  * by the privileged computation" that is provided at construction time and
    42  * accessed via the {@link #getException()} method is now known as the
    43  * <i>cause</i>, and may be accessed via the {@link Throwable#getCause()}
    44  * method, as well as the aforementioned "legacy method."
    45  *
    46  * @see PrivilegedExceptionAction
    47  * @see AccessController#doPrivileged(PrivilegedExceptionAction)
    48  * @see AccessController#doPrivileged(PrivilegedExceptionAction,AccessControlContext)
    49  */
    50 public class PrivilegedActionException extends Exception {
    51     // use serialVersionUID from JDK 1.2.2 for interoperability
    52     private static final long serialVersionUID = 4724086851538908602L;
    53 
    54     /**
    55      * @serial
    56      */
    57     private Exception exception;
    58 
    59     /**
    60      * Constructs a new PrivilegedActionException &quot;wrapping&quot;
    61      * the specific Exception.
    62      *
    63      * @param exception The exception thrown
    64      */
    65     public PrivilegedActionException(Exception exception) {
    66         super((Throwable)null);  // Disallow initCause
    67         this.exception = exception;
    68     }
    69 
    70     /**
    71      * Returns the exception thrown by the privileged computation that
    72      * resulted in this <code>PrivilegedActionException</code>.
    73      *
    74      * <p>This method predates the general-purpose exception chaining facility.
    75      * The {@link Throwable#getCause()} method is now the preferred means of
    76      * obtaining this information.
    77      *
    78      * @return the exception thrown by the privileged computation that
    79      *         resulted in this <code>PrivilegedActionException</code>.
    80      * @see PrivilegedExceptionAction
    81      * @see AccessController#doPrivileged(PrivilegedExceptionAction)
    82      * @see AccessController#doPrivileged(PrivilegedExceptionAction,
    83      *                                            AccessControlContext)
    84      */
    85     public Exception getException() {
    86         return exception;
    87     }
    88 
    89     /**
    90      * Returns the cause of this exception (the exception thrown by
    91      * the privileged computation that resulted in this
    92      * <code>PrivilegedActionException</code>).
    93      *
    94      * @return  the cause of this exception.
    95      * @since   1.4
    96      */
    97     public Throwable getCause() {
    98         return exception;
    99     }
   100 
   101     public String toString() {
   102         String s = getClass().getName();
   103         return (exception != null) ? (s + ": " + exception.toString()) : s;
   104     }
   105 }