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/* * Copyright (c) 2005, 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. *//* * $Id: XMLSignatureException.java,v 1.5 2005/05/10 16:03:48 mullan Exp $ */package javax.xml.crypto.dsig; import java.io.PrintStream;import java.io.PrintWriter; /** * Indicates an exceptional condition that occured during the XML * signature generation or validation process. * * <p>An <code>XMLSignatureException</code> can contain a cause: another * throwable that caused this <code>XMLSignatureException</code> to get thrown. * * @since 1.6 */public class XMLSignatureException extends Exception {     private static final long serialVersionUID = -3438102491013869995L;     /**     * The throwable that caused this exception to get thrown, or null if this     * exception was not caused by another throwable or if the causative     * throwable is unknown.     *     * @serial     */    private Throwable cause;     /**     * Constructs a new <code>XMLSignatureException</code> with     * <code>null</code> as its detail message.     */    public XMLSignatureException() {        super();    }     /**     * Constructs a new <code>XMLSignatureException</code> with the specified     * detail message.     *     * @param message the detail message     */    public XMLSignatureException(String message) {        super(message);    }     /**     * Constructs a new <code>XMLSignatureException</code> with the     * specified detail message and cause.     * <p>Note that the detail message associated with     * <code>cause</code> is <i>not</i> automatically incorporated in     * this exception's detail message.     *     * @param message the detail message     * @param cause the cause (A <tt>null</tt> value is permitted, and     *        indicates that the cause is nonexistent or unknown.)     */    public XMLSignatureException(String message, Throwable cause) {        super(message);        this.cause = cause;    }     /**     * Constructs a new <code>XMLSignatureException</code> with the specified     * cause and a detail message of     * <code>(cause==null ? null : cause.toString())</code>     * (which typically contains the class and detail message of     * <code>cause</code>).     *     * @param cause the cause (A <tt>null</tt> value is permitted, and     *        indicates that the cause is nonexistent or unknown.)     */    public XMLSignatureException(Throwable cause) {        super(cause==null ? null : cause.toString());        this.cause = cause;    }     /**     * Returns the cause of this <code>XMLSignatureException</code> or     * <code>null</code> if the cause is nonexistent or unknown.  (The     * cause is the throwable that caused this     * <code>XMLSignatureException</code> to get thrown.)     *     * @return the cause of this <code>XMLSignatureException</code> or     *         <code>null</code> if the cause is nonexistent or unknown.     */    public Throwable getCause() {        return cause;    }     /**     * Prints this <code>XMLSignatureException</code>, its backtrace and     * the cause's backtrace to the standard error stream.     */    public void printStackTrace() {        super.printStackTrace();        if (cause != null) {            cause.printStackTrace();        }    }     /**     * Prints this <code>XMLSignatureException</code>, its backtrace and     * the cause's backtrace to the specified print stream.     *     * @param s <code>PrintStream</code> to use for output     */    public void printStackTrace(PrintStream s) {        super.printStackTrace(s);        if (cause != null) {            cause.printStackTrace(s);        }    }     /**     * Prints this <code>XMLSignatureException</code>, its backtrace and     * the cause's backtrace to the specified print writer.     *     * @param s <code>PrintWriter</code> to use for output     */    public void printStackTrace(PrintWriter s) {        super.printStackTrace(s);        if (cause != null) {            cause.printStackTrace(s);        }    }}