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From jstrac...@apache.org
Subject cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/util NestedRuntimeException.java
Date Wed, 30 Oct 2002 19:13:42 GMT
jstrachan    2002/10/30 11:13:42

  Added:       jelly/src/java/org/apache/commons/jelly/util
                        NestedRuntimeException.java
  Log:
  Added the new Threads library created by Jason Horman which allows simple and complex threading
to be used inside a Jelly script.
  This is especially useful for evaluating different Jelly scripts in parallel and then joining
them back together.
  
  Revision  Changes    Path
  1.1                  jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/util/NestedRuntimeException.java
  
  Index: NestedRuntimeException.java
  ===================================================================
  /*
   * $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/util/CommandLineParser.java,v
1.1 2002/10/16 22:58:29 morgand Exp $
   * $Revision: 1.1 $
   * $Date: 2002/10/16 22:58:29 $
   *
   * ====================================================================
   *
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2002 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution, if
   *    any, must include the following acknowlegement:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowlegement may appear in the software itself,
   *    if and wherever such third-party acknowlegements normally appear.
   *
   * 4. The names "The Jakarta Project", "Commons", and "Apache Software
   *    Foundation" must not be used to endorse or promote products derived
   *    from this software without prior written permission. For written
   *    permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache"
   *    nor may "Apache" appear in their names without prior written
   *    permission of the Apache Group.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   * 
   * $Id: CommandLineParser.java,v 1.1 2002/10/16 22:58:29 morgand Exp $
   */
  
  package org.apache.commons.jelly.util;
  
  import java.io.PrintStream;
  import java.io.PrintWriter;
  
  /** 
   * A {@link RuntimeException} which is nested to preserve stack traces.
   *
   * This class allows the following code to be written to convert a regular
   * Exception into a {@link RuntimeException} without losing the stack trace.
   *
   * <pre>
   *    try {
   *        ...
   *    } catch (Exception e) {
   *        throw new RuntimeException(e);
   *    }
   * </pre>
   *
   * @author James Strachan
   * @version $Revision: 1.2 $
   */
  
  public class NestedRuntimeException extends RuntimeException {
  
  	/**
  	 * Holds the reference to the exception or error that caused
  	 * this exception to be thrown.
  	 */
  	private Throwable cause = null;
  
  	/**
  	 * Constructs a new <code>NestedRuntimeException</code> with specified
  	 * nested <code>Throwable</code>.
  	 *
  	 * @param cause the exception or error that caused this exception to be
  	 * thrown
  	 */
  	public NestedRuntimeException(Throwable cause) {
  		super(cause.getMessage());
  		this.cause = cause;
  	}
  
  	/**
  	 * Constructs a new <code>NestedRuntimeException</code> with specified
  	 * detail message and nested <code>Throwable</code>.
  	 *
  	 * @param msg    the error message
  	 * @param cause  the exception or error that caused this exception to be
  	 * thrown
  	 */
  	public NestedRuntimeException(String msg, Throwable cause) {
  		super(msg);
  		this.cause = cause;
  	}
  
  	public Throwable getCause() {
  		return cause;
  	}
  
  	public void printStackTrace() {
  		cause.printStackTrace();
  	}
  
  	public void printStackTrace(PrintStream out) {
  		cause.printStackTrace(out);
  	}
  
  	public void printStackTrace(PrintWriter out) {
  		cause.printStackTrace(out);
  	}
  
  }
  
  
  

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