/*

  * 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;

 /**

  * Thrown when an application attempts to use {@code null} in a

  * case where an object is required. These include:

  * <ul>

  * <li>Calling the instance method of a {@code null} object.

  * <li>Accessing or modifying the field of a {@code null} object.

  * <li>Taking the length of {@code null} as if it were an array.

  * <li>Accessing or modifying the slots of {@code null} as if it

  *     were an array.

  * <li>Throwing {@code null} as if it were a {@code Throwable}

  *     value.

  * </ul>

  * <p>

  * Applications should throw instances of this class to indicate

  * other illegal uses of the {@code null} object.

  *

  * {@code NullPointerException} objects may be constructed by the

  * virtual machine as if {@linkplain Throwable#Throwable(String,

  * Throwable, boolean, boolean) suppression were disabled and/or the

  * stack trace was not writable}.

  *

  * @author  unascribed

  * @since   JDK1.0

  */

 public

 class NullPointerException extends RuntimeException {

     private static final long serialVersionUID = 5162710183389028792L;

     /**

      * Constructs a {@code NullPointerException} with no detail message.

      */

     public NullPointerException() {

         super();

     }

     /**

      * Constructs a {@code NullPointerException} with the specified

      * detail message.

      *

      * @param   s   the detail message.

      */

     public NullPointerException(String s) {

         super(s);

     }

 }