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    
005    This file is part of GNU Classpath.
006    
007    GNU Classpath is free software; you can redistribute it and/or modify
008    it under the terms of the GNU General Public License as published by
009    the Free Software Foundation; either version 2, or (at your option)
010    any later version.
011    
012    GNU Classpath is distributed in the hope that it will be useful, but
013    WITHOUT ANY WARRANTY; without even the implied warranty of
014    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015    General Public License for more details.
016    
017    You should have received a copy of the GNU General Public License
018    along with GNU Classpath; see the file COPYING.  If not, write to the
019    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
020    02110-1301 USA.
021    
022    Linking this library statically or dynamically with other modules is
023    making a combined work based on this library.  Thus, the terms and
024    conditions of the GNU General Public License cover the whole
025    combination.
026    
027    As a special exception, the copyright holders of this library give you
028    permission to link this library with independent modules to produce an
029    executable, regardless of the license terms of these independent
030    modules, and to copy and distribute the resulting executable under
031    terms of your choice, provided that you also meet, for each linked
032    independent module, the terms and conditions of the license of that
033    module.  An independent module is a module which is not derived from
034    or based on this library.  If you modify this library, you may extend
035    this exception to your version of the library, but you are not
036    obligated to do so.  If you do not wish to do so, delete this
037    exception statement from your version. */
038    
039    
040    package 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     */
054    public 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    }