https://openjdk.java.net/ 
/*
 * Copyright (c) 1998, 2017, Oracle and/or its affiliates. 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
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 */


Provides for system input and output through data streams, serialization and the file system. Unless otherwise noted, passing a null argument to a constructor or method in any class or interface in this package will cause a NullPointerException to be thrown. 
Object Serialization


Warning: Deserialization of untrusted data is inherently dangerous
and should be avoided. Untrusted data should be carefully validated according to the
"Serialization and Deserialization" section of the
{@extLink secure_coding_guidelines_javase Secure Coding Guidelines for Java SE}.




Since:1.0
/**
 * Provides for system input and output through data streams,
 * serialization and the file system.
 *
 * Unless otherwise noted, passing a null argument to a constructor or
 * method in any class or interface in this package will cause a
 * {@code NullPointerException} to be thrown.
 *
 * <h2>Object Serialization</h2>
 * <p><strong>Warning: Deserialization of untrusted data is inherently dangerous
 * and should be avoided. Untrusted data should be carefully validated according to the
 * "Serialization and Deserialization" section of the
 * {@extLink secure_coding_guidelines_javase Secure Coding Guidelines for Java SE}.
 * </strong></p>
 * <ul>
 *   <li><a href="{@docRoot}/../specs/serialization/index.html">
 *       Java Object Serialization Specification </a>
 *   <li>{@extLink serialization_filter_guide Serial Filtering} best practices</li>
 *   <li>{@extLink serialver_tool_reference The serialver tool}</li>
 * </ul>
 *
 * @since 1.0
 */
package java.io;