001/* Exception.java -- generic exception thrown to indicate an exceptional
002   condition has occurred.
003   Copyright (C) 1998, 1999, 2001, 2002, 2005  Free Software Foundation, Inc.
004
005This file is part of GNU Classpath.
006
007GNU Classpath is free software; you can redistribute it and/or modify
008it under the terms of the GNU General Public License as published by
009the Free Software Foundation; either version 2, or (at your option)
010any later version.
011
012GNU Classpath is distributed in the hope that it will be useful, but
013WITHOUT ANY WARRANTY; without even the implied warranty of
014MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015General Public License for more details.
016
017You should have received a copy of the GNU General Public License
018along with GNU Classpath; see the file COPYING.  If not, write to the
019Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02002110-1301 USA.
021
022Linking this library statically or dynamically with other modules is
023making a combined work based on this library.  Thus, the terms and
024conditions of the GNU General Public License cover the whole
025combination.
026
027As a special exception, the copyright holders of this library give you
028permission to link this library with independent modules to produce an
029executable, regardless of the license terms of these independent
030modules, and to copy and distribute the resulting executable under
031terms of your choice, provided that you also meet, for each linked
032independent module, the terms and conditions of the license of that
033module.  An independent module is a module which is not derived from
034or based on this library.  If you modify this library, you may extend
035this exception to your version of the library, but you are not
036obligated to do so.  If you do not wish to do so, delete this
037exception statement from your version. */
038
039
040package java.lang;
041
042/**
043 * The root class of all exceptions worth catching in a program.  This
044 * includes the special category of <code>RuntimeException</code>, which
045 * does not need to be declared in a throws clause.  Exceptions can be used
046 * to represent almost any exceptional behavior, such as programming errors,
047 * mouse movements, keyboard clicking, etc.
048 *
049 * @author Brian Jones
050 * @author Warren Levy (warrenl@cygnus.com)
051 * @author Eric Blake (ebb9@email.byu.edu)
052 * @status updated to 1.4
053 */
054public class Exception extends Throwable
055{
056  /**
057   * Compatible with JDK 1.0+.
058   */
059  private static final long serialVersionUID = -3387516993124229948L;
060
061  /**
062   * Create an exception without a message. The cause remains uninitialized.
063   *
064   * @see #initCause(Throwable)
065   */
066  public Exception()
067  {
068  }
069
070  /**
071   * Create an exception with a message. The cause remains uninitialized.
072   *
073   * @param s the message
074   * @see #initCause(Throwable)
075   */
076  public Exception(String s)
077  {
078    super(s);
079  }
080
081  /**
082   * Create an exception with a message and a cause.
083   *
084   * @param s the message string
085   * @param cause the cause of this error
086   * @since 1.4
087   */
088  public Exception(String s, Throwable cause)
089  {
090    super(s, cause);
091  }
092
093  /**
094   * Create an exception with a given cause, and a message of
095   * <code>cause == null ? null : cause.toString()</code>.
096   *
097   * @param cause the cause of this exception
098   * @since 1.4
099   */
100  public Exception(Throwable cause)
101  {
102    super(cause);
103  }
104}