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/*
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* Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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jaroslav@70
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang;
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/**
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* Thrown when an application attempts to use {@code null} in a
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* case where an object is required. These include:
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* <ul>
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* <li>Calling the instance method of a {@code null} object.
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* <li>Accessing or modifying the field of a {@code null} object.
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* <li>Taking the length of {@code null} as if it were an array.
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* <li>Accessing or modifying the slots of {@code null} as if it
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* were an array.
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* <li>Throwing {@code null} as if it were a {@code Throwable}
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* value.
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* </ul>
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* <p>
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* Applications should throw instances of this class to indicate
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* other illegal uses of the {@code null} object.
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*
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* {@code NullPointerException} objects may be constructed by the
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* virtual machine as if {@linkplain Throwable#Throwable(String,
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* Throwable, boolean, boolean) suppression were disabled and/or the
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* stack trace was not writable}.
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*
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* @author unascribed
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* @since JDK1.0
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*/
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public
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class NullPointerException extends RuntimeException {
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private static final long serialVersionUID = 5162710183389028792L;
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/**
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* Constructs a {@code NullPointerException} with no detail message.
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*/
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public NullPointerException() {
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super();
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}
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/**
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* Constructs a {@code NullPointerException} with the specified
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* detail message.
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*
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* @param s the detail message.
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*/
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public NullPointerException(String s) {
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super(s);
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}
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}
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