1 /*
2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 /*
27  * This file is available under and governed by the GNU General Public
28  * License version 2 only, as published by the Free Software Foundation.
29  * However, the following notice accompanied the original version of this
30  * file:
31  *
32  * Copyright (c) 2012, Stephen Colebourne & Michael Nascimento Santos
33  *
34  * All rights reserved.
35  *
36  * Redistribution and use in source and binary forms, with or without
37  * modification, are permitted provided that the following conditions are met:
38  *
39  *  * Redistributions of source code must retain the above copyright notice,
40  *    this list of conditions and the following disclaimer.
41  *
42  *  * Redistributions in binary form must reproduce the above copyright notice,
43  *    this list of conditions and the following disclaimer in the documentation
44  *    and/or other materials provided with the distribution.
45  *
46  *  * Neither the name of JSR-310 nor the names of its contributors
47  *    may be used to endorse or promote products derived from this software
48  *    without specific prior written permission.
49  *
50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
54  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
55  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
56  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
57  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
58  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
59  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
60  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61  */
62 
63 /**
64  * <p>
65  * Support for time-zones and their rules.
66  * </p>
67  * <p>
68  * Daylight Saving Time and Time-Zones are concepts used by Governments to alter local time.
69  * This package provides support for time-zones, their rules and the resulting
70  * gaps and overlaps in the local time-line typically caused by Daylight Saving Time.
71  * </p>
72  *
73  * <h3>Package specification</h3>
74  * <p>
75  * Unless otherwise noted, passing a null argument to a constructor or method in any class or interface
76  * in this package will cause a {@link java.lang.NullPointerException NullPointerException} to be thrown.
77  * The Javadoc "@param" definition is used to summarise the null-behavior.
78  * The "@throws {@link java.lang.NullPointerException}" is not explicitly documented in each method.
79  * </p>
80  * <p>
81  * All calculations should check for numeric overflow and throw either an {@link java.lang.ArithmeticException}
82  * or a {@link java.time.DateTimeException}.
83  * </p>
84  * @since JDK1.8
85  */
86 package java.time.zone;
87