content: /*
   * 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:
   *
   * <ul>
   *   <li>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.
   *
   *   <li>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.
   * </ul>
   *
   * @author  unascribed
   * @since   JDK1.1
   */
  public class OptionalDataException extends ObjectStreamException {
  
      private static final long serialVersionUID = -8011121865681257820L;
  
      /*
       * Create an <code>OptionalDataException</code> with a length.
       */
      OptionalDataException(int len) {
          eof = false;
          length = len;
      }
  
      /*
       * Create an <code>OptionalDataException</code> 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;
  }
  