content: /*
   * Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package java.lang;
  
  /**
   * The class {@code Exception} and its subclasses are a form of
   * {@code Throwable} that indicates conditions that a reasonable
   * application might want to catch.
   *
   * <p>The class {@code Exception} and any subclasses that are not also
   * subclasses of {@link RuntimeException} are <em>checked
   * exceptions</em>.  Checked exceptions need to be declared in a
   * method or constructor's {@code throws} clause if they can be thrown
   * by the execution of the method or constructor and propagate outside
   * the method or constructor boundary.
   *
   * @author  Frank Yellin
   * @see     Error
   * @jls 11.2 Compile-Time Checking of Exceptions
   * @since   JDK1.0
   */
  public class Exception extends Throwable {
      static final long serialVersionUID = -3387516993124229948L;
  
      /**
       * Constructs a new exception with {@code null} as its detail message.
       * The cause is not initialized, and may subsequently be initialized by a
       * call to {@link #initCause}.
       */
      public Exception() {
          super();
      }
  
      /**
       * Constructs a new exception with the specified detail message.  The
       * cause is not initialized, and may subsequently be initialized by
       * a call to {@link #initCause}.
       *
       * @param   message   the detail message. The detail message is saved for
       *          later retrieval by the {@link #getMessage()} method.
       */
      public Exception(String message) {
          super(message);
      }
  
      /**
       * Constructs a new exception with the specified detail message and
       * cause.  <p>Note that the detail message associated with
       * {@code cause} is <i>not</i> automatically incorporated in
       * this exception's detail message.
       *
       * @param  message the detail message (which is saved for later retrieval
       *         by the {@link #getMessage()} method).
       * @param  cause the cause (which is saved for later retrieval by the
       *         {@link #getCause()} method).  (A <tt>null</tt> value is
       *         permitted, and indicates that the cause is nonexistent or
       *         unknown.)
       * @since  1.4
       */
      public Exception(String message, Throwable cause) {
          super(message, cause);
      }
  
      /**
       * Constructs a new exception with the specified cause and a detail
       * message of <tt>(cause==null ? null : cause.toString())</tt> (which
       * typically contains the class and detail message of <tt>cause</tt>).
       * This constructor is useful for exceptions that are little more than
       * wrappers for other throwables (for example, {@link
       * java.security.PrivilegedActionException}).
       *
       * @param  cause the cause (which is saved for later retrieval by the
       *         {@link #getCause()} method).  (A <tt>null</tt> value is
       *         permitted, and indicates that the cause is nonexistent or
       *         unknown.)
       * @since  1.4
       */
      public Exception(Throwable cause) {
          super(cause);
      }
  
      /**
       * Constructs a new exception with the specified detail message,
       * cause, suppression enabled or disabled, and writable stack
       * trace enabled or disabled.
       *
       * @param  message the detail message.
       * @param cause the cause.  (A {@code null} value is permitted,
       * and indicates that the cause is nonexistent or unknown.)
       * @param enableSuppression whether or not suppression is enabled
       *                          or disabled
       * @param writableStackTrace whether or not the stack trace should
       *                           be writable
       * @since 1.7
       */
      protected Exception(String message, Throwable cause,
                          boolean enableSuppression,
                          boolean writableStackTrace) {
          super(message, cause, enableSuppression, writableStackTrace);
      }
  }
  