1 /*
   2  * Copyright (c) 1998, 2017, 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  * Provides classes for reading and writing the standard ZIP and GZIP file
  28  * formats. Also includes classes for compressing and decompressing data using
  29  * the DEFLATE compression algorithm, which is used by the ZIP and GZIP file
  30  * formats. Additionally, there are utility classes for computing the CRC-32,
  31  * CRC-32C and Adler-32 checksums of arbitrary input streams.
  32  *
  33  * <h2>Package Specification</h2>
  34  *
  35  * <ul>
  36  *     <li><a href="http://www.info-zip.org/doc/appnote-19970311-iz.zip">
  37  *         Info-ZIP Application Note 970311</a> - a detailed description of
  38  *         the Info-ZIP format upon which the {@code java.util.zip} classes
  39  *         are based.
  40  *     <li><a id="zip64">An implementation may optionally support the
  41  *         ZIP64(tm) format extensions defined by the</a>
  42  *         <a href="http://www.pkware.com/documents/casestudies/APPNOTE.TXT">
  43  *         PKWARE ZIP File Format Specification</a>. The ZIP64(tm) format
  44  *         extensions are used to overcome the size limitations of the
  45  *         original ZIP format.
  46  *     <li><a id="lang_encoding">APPENDIX D of</a>
  47  *         <a href="http://www.pkware.com/documents/casestudies/APPNOTE.TXT">
  48  *         PKWARE ZIP File Format Specification</a> - Language Encoding Flag
  49  *         to encode ZIP entry filename and comment fields using UTF-8.
  50  *     <li><a href="http://www.ietf.org/rfc/rfc1950.txt">
  51  *         ZLIB Compressed Data Format Specification version 3.3</a>
  52  *         &nbsp;
  53  *         <a href="http://www.ietf.org/rfc/rfc1950.txt.pdf">(pdf)</a>
  54  *         (RFC 1950)
  55  *     <li><a href="http://www.ietf.org/rfc/rfc1951.txt">
  56  *         DEFLATE Compressed Data Format Specification version 1.3</a>
  57  *         &nbsp;
  58  *         <a href="http://www.ietf.org/rfc/rfc1951.txt.pdf">(pdf)</a>
  59  *         (RFC 1951)
  60  *     <li><a href="http://www.ietf.org/rfc/rfc1952.txt">
  61  *         GZIP file format specification version 4.3</a>
  62  *         &nbsp;
  63  *         <a href="http://www.ietf.org/rfc/rfc1952.txt.pdf">(pdf)</a>
  64  *         (RFC 1952)
  65  *     <li>CRC-32 checksum is described in RFC 1952 (above)
  66  *     <li>CRC-32C checksum is described in
  67  *         <a href="http://www.ietf.org/rfc/rfc3720.txt">Internet Small
  68  *         Computer Systems Interface (iSCSI)</a>
  69  *         &nbsp;
  70  *         <a href="http://www.ietf.org/rfc/rfc3720.txt.pdf">(pdf)</a>
  71  *         (RFC 3720)
  72  *     <li>Adler-32 checksum is described in RFC 1950 (above)
  73  * </ul>
  74  *
  75  * @since 1.1
  76  */
  77 package java.util.zip;