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 for system input and output through data streams,
  28  * serialization and the file system.
  29  *
  30  * Unless otherwise noted, passing a null argument to a constructor or
  31  * method in any class or interface in this package will cause a
  32  * {@code NullPointerException} to be thrown.
  33  *
  34  * <h2>Package Specification</h2>
  35  * <ul>
  36  *   <li><a href="{@docRoot}/../specs/serialization/index.html">
  37  *       Java Object Serialization Specification </a>
  38  * </ul>
  39  *
  40  * <h2>Related Documentation</h2>
  41  *
  42  * For overviews, tutorials, examples, guides, and tool documentation,
  43  * please see:
  44  * <ul>
  45  *     <li>{@extLink serialver_tool_reference The serialver tool}</li>
  46  *     <li>{@extLink serialization_guide Serialization Documentation}</li>
  47  * </ul>
  48  *
  49  * @since 1.0
  50  */
  51 package java.io;