| /* |
| * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.rmi.activation; |
| |
| /** |
| * General exception used by the activation interfaces. |
| * |
| * <p>As of release 1.4, this exception has been retrofitted to conform to |
| * the general purpose exception-chaining mechanism. The "detail exception" |
| * that may be provided at construction time and accessed via the public |
| * {@link #detail} field is now known as the <i>cause</i>, and may be |
| * accessed via the {@link Throwable#getCause()} method, as well as |
| * the aforementioned "legacy field." |
| * |
| * <p>Invoking the method {@link Throwable#initCause(Throwable)} on an |
| * instance of {@code ActivationException} always throws {@link |
| * IllegalStateException}. |
| * |
| * @author Ann Wollrath |
| * @since 1.2 |
| */ |
| public class ActivationException extends Exception { |
| |
| /** |
| * The cause of the activation exception. |
| * |
| * <p>This field predates the general-purpose exception chaining facility. |
| * The {@link Throwable#getCause()} method is now the preferred means of |
| * obtaining this information. |
| * |
| * @serial |
| */ |
| public Throwable detail; |
| |
| /** indicate compatibility with the Java 2 SDK v1.2 version of class */ |
| private static final long serialVersionUID = -4320118837291406071L; |
| |
| /** |
| * Constructs an {@code ActivationException}. |
| */ |
| public ActivationException() { |
| initCause(null); // Disallow subsequent initCause |
| } |
| |
| /** |
| * Constructs an {@code ActivationException} with the specified |
| * detail message. |
| * |
| * @param s the detail message |
| */ |
| public ActivationException(String s) { |
| super(s); |
| initCause(null); // Disallow subsequent initCause |
| } |
| |
| /** |
| * Constructs an {@code ActivationException} with the specified |
| * detail message and cause. This constructor sets the {@link #detail} |
| * field to the specified {@code Throwable}. |
| * |
| * @param s the detail message |
| * @param cause the cause |
| */ |
| public ActivationException(String s, Throwable cause) { |
| super(s); |
| initCause(null); // Disallow subsequent initCause |
| detail = cause; |
| } |
| |
| /** |
| * Returns the detail message, including the message from the cause, if |
| * any, of this exception. |
| * |
| * @return the detail message |
| */ |
| public String getMessage() { |
| if (detail == null) |
| return super.getMessage(); |
| else |
| return super.getMessage() + |
| "; nested exception is: \n\t" + |
| detail.toString(); |
| } |
| |
| /** |
| * Returns the cause of this exception. This method returns the value |
| * of the {@link #detail} field. |
| * |
| * @return the cause, which may be {@code null}. |
| * @since 1.4 |
| */ |
| public Throwable getCause() { |
| return detail; |
| } |
| } |