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/*
 * Copyright (c) 1996, 2005, 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
 * questions.
 */
package java.io;

/**
 * Exception indicating the failure of an object read operation due to
 * unread primitive data, or the end of data belonging to a serialized
 * object in the stream.  This exception may be thrown in two cases:
 *
 * 
    *
  • An attempt was made to read an object when the next element in the * stream is primitive data. In this case, the OptionalDataException's * length field is set to the number of bytes of primitive data * immediately readable from the stream, and the eof field is set to * false. * *
  • An attempt was made to read past the end of data consumable by a * class-defined readObject or readExternal method. In this case, the * OptionalDataException's eof field is set to true, and the length field * is set to 0. *
* * @author unascribed * @since JDK1.1 */ public class OptionalDataException extends ObjectStreamException { private static final long serialVersionUID = -8011121865681257820L; /* * Create an OptionalDataException with a length. */ OptionalDataException(int len) { eof = false; length = len; } /* * Create an OptionalDataException signifying no * more primitive data is available. */ OptionalDataException(boolean end) { length = 0; eof = end; } /** * The number of bytes of primitive data available to be read * in the current buffer. * * @serial */ public int length; /** * True if there is no more data in the buffered part of the stream. * * @serial */ public boolean eof; }




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