ServletException.java

/*
 * The contents of this file are subject to the terms
 * of the Common Development and Distribution License
 * (the "License").  You may not use this file except
 * in compliance with the License.
 *
 * You can obtain a copy of the license at
 * glassfish/bootstrap/legal/CDDLv1.0.txt or
 * https://glassfish.dev.java.net/public/CDDLv1.0.html.
 * See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL
 * HEADER in each file and include the License file at
 * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable,
 * add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your
 * own identifying information: Portions Copyright [yyyy]
 * [name of copyright owner]
 *
 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
 *
 * Portions Copyright Apache Software Foundation.
 */ 

package javax.servlet;


/**
 * Defines a general exception a servlet can throw when it
 * encounters difficulty.
 *
 * @author 	Various
 */


public class ServletException extends Exception {

    private Throwable rootCause;





    /**
     * Constructs a new servlet exception.
     *
     */

    public ServletException() {
	super();
    }
    
   

    

    /**
     * Constructs a new servlet exception with the
     * specified message. The message can be written 
     * to the server log and/or displayed for the user. 
     *
     * @param message 		a <code>String</code> 
     *				specifying the text of 
     *				the exception message
     *
     */

    public ServletException(String message) {
	super(message);
    }
    
   
   
    

    /**
     * Constructs a new servlet exception when the servlet 
     * needs to throw an exception and include a message 
     * about the "root cause" exception that interfered with its 
     * normal operation, including a description message.
     *
     *
     * @param message 		a <code>String</code> containing 
     *				the text of the exception message
     *
     * @param rootCause		the <code>Throwable</code> exception 
     *				that interfered with the servlet's
     *				normal operation, making this servlet
     *				exception necessary
     *
     */
    
    public ServletException(String message, Throwable rootCause) {
	super(message, rootCause);
	this.rootCause = rootCause;
    }





    /**
     * Constructs a new servlet exception when the servlet 
     * needs to throw an exception and include a message
     * about the "root cause" exception that interfered with its
     * normal operation.  The exception's message is based on the localized
     * message of the underlying exception.
     *
     * <p>This method calls the <code>getLocalizedMessage</code> method
     * on the <code>Throwable</code> exception to get a localized exception
     * message. When subclassing <code>ServletException</code>, 
     * this method can be overridden to create an exception message 
     * designed for a specific locale.
     *
     * @param rootCause 	the <code>Throwable</code> exception
     * 				that interfered with the servlet's
     *				normal operation, making the servlet exception
     *				necessary
     *
     */

    public ServletException(Throwable rootCause) {
	super(rootCause);
	this.rootCause = rootCause;
    }
  
  
 
 
    
    /**
     * Returns the exception that caused this servlet exception.
     *
     *
     * @return			the <code>Throwable</code> 
     *				that caused this servlet exception
     *
     */
    
    public Throwable getRootCause() {
	return rootCause;
    }
}