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>Object Serialization</h2> 35 * <p><strong>Warning: Deserialization of untrusted data is inherently dangerous 36 * and should be avoided. Untrusted data should be carefully validated according to the 37 * "Serialization and Deserialization" section of the 38 * <a href="https://docs.oracle.com/pls/topic/lookup?ctx=javase17&id=secure_coding_guidelines_javase">Secure Coding Guidelines for Java SE</a>. 39 * </strong></p> 40 * <ul> 41 * <li><a href="{@docRoot}/../specs/serialization/index.html"> 42 * <cite>Java Object Serialization Specification</cite></a> 43 * <li><a href="https://docs.oracle.com/pls/topic/lookup?ctx=javase17&id=serialization_filter_guide">Serial Filtering</a> best practices</li> 44 * <li><a href="https://docs.oracle.com/pls/topic/lookup?ctx=javase17&id=serialver_tool_reference">The serialver tool</a></li> 45 * </ul> 46 * 47 * @since 1.0 48 */ 49 package java.io; 50