javax.servlet.ServletException Maven / Gradle / Ivy
/*
* Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved.
* Copyright 2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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 String
* 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 String containing
* the text of the exception message
*
* @param rootCause the Throwable 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.
*
* This method calls the getLocalizedMessage method
* on the Throwable exception to get a localized exception
* message. When subclassing ServletException,
* this method can be overridden to create an exception message
* designed for a specific locale.
*
* @param rootCause the Throwable 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 Throwable
* that caused this servlet exception
*
*/
public Throwable getRootCause() {
return rootCause;
}
}