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Spring Framework example source code file (NestedServletException.java)

This example Spring Framework source code file (NestedServletException.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Spring Framework tags/keywords

nestedservletexception, nestedservletexception, servlet, servletexception, servletexception, string, string, throwable, throwable

The Spring Framework NestedServletException.java source code

/*
 * Copyright 2002-2007 the original author or authors.
 *
 * 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 org.springframework.web.util;

import javax.servlet.ServletException;

import org.springframework.core.NestedExceptionUtils;

/**
 * Subclass of ServletException that properly handles a root cause in terms
 * of message and stacktrace, just like NestedChecked/RuntimeException does.
 * Note that the plain ServletException doesn't expose its root cause at all,
 * neither in the exception message nor in printed stack traces!
 *
 * <p>The similarity between this class and the NestedChecked/RuntimeException
 * class is unavoidable, as this class needs to derive from ServletException
 * and cannot derive from NestedCheckedException.
 *
 * @author Juergen Hoeller
 * @since 1.2.5
 * @see #getMessage
 * @see #printStackTrace
 * @see org.springframework.core.NestedCheckedException
 * @see org.springframework.core.NestedRuntimeException
 */
public class NestedServletException extends ServletException {

	/** Use serialVersionUID from Spring 1.2 for interoperability */
	private static final long serialVersionUID = -5292377985529381145L;


	/**
	 * Construct a <code>NestedServletException with the specified detail message.
	 * @param msg the detail message
	 */
	public NestedServletException(String msg) {
		super(msg);
	}

	/**
	 * Construct a <code>NestedServletException with the specified detail message
	 * and nested exception.
	 * @param msg the detail message
	 * @param cause the nested exception
	 */
	public NestedServletException(String msg, Throwable cause) {
		super(msg, cause);
		// Set JDK 1.4 exception chain cause if not done by ServletException class already
		// (this differs between Servlet API versions).
		if (getCause() == null) {
			initCause(cause);
		}
	}


	/**
	 * Return the detail message, including the message from the nested exception
	 * if there is one.
	 */
	public String getMessage() {
		return NestedExceptionUtils.buildMessage(super.getMessage(), getCause());
	}

}

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