/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
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 */


package com.sun.jdo.api.persistence.enhancer.util;


/**
 * Thrown to indicate that the class-file enhancer failed to perform an
 * operation due to a serious error.
 */
public class UserException
    extends RuntimeException
{
    /**
     * An optional nested exception.
     */
    public final Throwable nested;

    /**
     * Constructs an <code>UserException</code> with no detail message.
     */
    public UserException()
    {
        this.nested = null;
    }

    /**
     * Constructs an <code>UserException</code> with the specified
     * detail message.
     */
    public UserException(String msg)
    {
        super(msg);
        this.nested = null;
    }

    /**
     * Constructs an <code>UserException</code> with an optional
     * nested exception.
     */
    public UserException(Throwable nested)
    {
        super(nested.toString());
        this.nested = nested;
    }

    /**
     * Constructs an <code>UserException</code> with the specified
     * detail message and an optional nested exception.
     */
    public UserException(String msg, Throwable nested)
    {
        super(msg);
        this.nested = nested;
    }
}
