hg/bck2brwsr: rt/emul/mini/src/main/java/java/lang/reflect/UndeclaredThrowableException.java@d382dacfd73f

     1 /*

     2  * Copyright (c) 1999, 2006, 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  */

    26 package java.lang.reflect;

    28 /**

    29  * Thrown by a method invocation on a proxy instance if its invocation

    30  * handler's {@link InvocationHandler#invoke invoke} method throws a

    31  * checked exception (a {@code Throwable} that is not assignable

    32  * to {@code RuntimeException} or {@code Error}) that

    33  * is not assignable to any of the exception types declared in the

    34  * {@code throws} clause of the method that was invoked on the

    35  * proxy instance and dispatched to the invocation handler.

    36  *

    37  * <p>An {@code UndeclaredThrowableException} instance contains

    38  * the undeclared checked exception that was thrown by the invocation

    39  * handler, and it can be retrieved with the

    40  * {@code getUndeclaredThrowable()} method.

    41  * {@code UndeclaredThrowableException} extends

    42  * {@code RuntimeException}, so it is an unchecked exception

    43  * that wraps a checked exception.

    44  *

    45  * <p>As of release 1.4, this exception has been retrofitted to

    46  * conform to the general purpose exception-chaining mechanism.  The

    47  * "undeclared checked exception that was thrown by the invocation

    48  * handler" that may be provided at construction time and accessed via

    49  * the {@link #getUndeclaredThrowable()} method is now known as the

    50  * <i>cause</i>, and may be accessed via the {@link

    51  * Throwable#getCause()} method, as well as the aforementioned "legacy

    52  * method."

    53  *

    54  * @author      Peter Jones

    55  * @see         InvocationHandler

    56  * @since       1.3

    57  */

    58 public class UndeclaredThrowableException extends RuntimeException {

    59     static final long serialVersionUID = 330127114055056639L;

    61     /**

    62      * the undeclared checked exception that was thrown

    63      * @serial

    64      */

    65     private Throwable undeclaredThrowable;

    67     /**

    68      * Constructs an {@code UndeclaredThrowableException} with the

    69      * specified {@code Throwable}.

    70      *

    71      * @param   undeclaredThrowable the undeclared checked exception

    72      *          that was thrown

    73      */

    74     public UndeclaredThrowableException(Throwable undeclaredThrowable) {

    75         super((Throwable) null);  // Disallow initCause

    76         this.undeclaredThrowable = undeclaredThrowable;

    77     }

    79     /**

    80      * Constructs an {@code UndeclaredThrowableException} with the

    81      * specified {@code Throwable} and a detail message.

    82      *

    83      * @param   undeclaredThrowable the undeclared checked exception

    84      *          that was thrown

    85      * @param   s the detail message

    86      */

    87     public UndeclaredThrowableException(Throwable undeclaredThrowable,

    88                                         String s)

    89     {

    90         super(s, null);  // Disallow initCause

    91         this.undeclaredThrowable = undeclaredThrowable;

    92     }

    94     /**

    95      * Returns the {@code Throwable} instance wrapped in this

    96      * {@code UndeclaredThrowableException}, which may be {@code null}.

    97      *

    98      * <p>This method predates the general-purpose exception chaining facility.

    99      * The {@link Throwable#getCause()} method is now the preferred means of

   100      * obtaining this information.

   101      *

   102      * @return the undeclared checked exception that was thrown

   103      */

   104     public Throwable getUndeclaredThrowable() {

   105         return undeclaredThrowable;

   106     }

   108     /**

   109      * Returns the cause of this exception (the {@code Throwable}

   110      * instance wrapped in this {@code UndeclaredThrowableException},

   111      * which may be {@code null}).

   112      *

   113      * @return  the cause of this exception.

   114      * @since   1.4

   115      */

   116     public Throwable getCause() {

   117         return undeclaredThrowable;

   118     }

   119 }

author	Jaroslav Tulach <jaroslav.tulach@apidesign.org>
	Tue, 26 Feb 2013 16:54:16 +0100
changeset 772	d382dacfd73f
parent 601	emul/mini/src/main/java/java/lang/reflect/UndeclaredThrowableException.java@5198affdb915
permissions	-rw-r--r--