66 lines
2.3 KiB
Java
66 lines
2.3 KiB
Java
|
/*
|
||
|
|
* Copyright 1994-1997 Sun Microsystems, Inc. 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. Sun designates this
|
||
|
|
* particular file as subject to the "Classpath" exception as provided
|
||
|
|
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
|
||
|
|
* CA 95054 USA or visit www.sun.com if you need additional information or
|
||
|
|
* have any questions.
|
||
|
|
*/
|
||
|
|
|
||
|
|
package java.lang;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Thrown when an application attempts to use <code>null</code> in a
|
||
|
|
* case where an object is required. These include:
|
||
|
|
* <ul>
|
||
|
|
* <li>Calling the instance method of a <code>null</code> object.
|
||
|
|
* <li>Accessing or modifying the field of a <code>null</code> object.
|
||
|
|
* <li>Taking the length of <code>null</code> as if it were an array.
|
||
|
|
* <li>Accessing or modifying the slots of <code>null</code> as if it
|
||
|
|
* were an array.
|
||
|
|
* <li>Throwing <code>null</code> as if it were a <code>Throwable</code>
|
||
|
|
* value.
|
||
|
|
* </ul>
|
||
|
|
* <p>
|
||
|
|
* Applications should throw instances of this class to indicate
|
||
|
|
* other illegal uses of the <code>null</code> object.
|
||
|
|
*
|
||
|
|
* @author unascribed
|
||
|
|
* @since JDK1.0
|
||
|
|
*/
|
||
|
|
public
|
||
|
|
class NullPointerException extends RuntimeException {
|
||
|
|
/**
|
||
|
|
* Constructs a <code>NullPointerException</code> with no detail message.
|
||
|
|
*/
|
||
|
|
public NullPointerException() {
|
||
|
|
super();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Constructs a <code>NullPointerException</code> with the specified
|
||
|
|
* detail message.
|
||
|
|
*
|
||
|
|
* @param s the detail message.
|
||
|
|
*/
|
||
|
|
public NullPointerException(String s) {
|
||
|
|
super(s);
|
||
|
|
}
|
||
|
|
}
|