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/* * Copyright (c) 2000, 2006, 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. *//* * @author    IBM Corp. * * Copyright IBM Corp. 1999-2000.  All rights reserved. */  package javax.management.modelmbean; import com.sun.jmx.mbeanserver.GetPropertyAction; import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.ObjectStreamField;import java.security.AccessController; /*** This exception is thrown when an XML formatted string is being parsed into ModelMBean objects* or when XML formatted strings are being created from ModelMBean objects.** It is also used to wrapper exceptions from XML parsers that may be used.** <p>The <b>serialVersionUID</b> of this class is <code>3176664577895105181L</code>.** @since 1.5*/@SuppressWarnings("serial")  // serialVersionUID not constantpublic class XMLParseExceptionextends Exception{    // Serialization compatibility stuff:    // Two serial forms are supported in this class. The selected form depends    // on system property "jmx.serial.form":    //  - "1.0" for JMX 1.0    //  - any other value for JMX 1.1 and higher    //    // Serial version for old serial form    private static final long oldSerialVersionUID = -7780049316655891976L;    //    // Serial version for new serial form    private static final long newSerialVersionUID = 3176664577895105181L;    //    // Serializable fields in old serial form    private static final ObjectStreamField[] oldSerialPersistentFields =    {      new ObjectStreamField("msgStr", String.class)    };    //    // Serializable fields in new serial form  private static final ObjectStreamField[] newSerialPersistentFields = { };    //    // Actual serial version and serial form    private static final long serialVersionUID;    private static final ObjectStreamField[] serialPersistentFields;    private static boolean compat = false;    static {        try {            GetPropertyAction act = new GetPropertyAction("jmx.serial.form");            String form = AccessController.doPrivileged(act);            compat = (form != null && form.equals("1.0"));        } catch (Exception e) {            // OK: No compat with 1.0        }        if (compat) {            serialPersistentFields = oldSerialPersistentFields;            serialVersionUID = oldSerialVersionUID;        } else {            serialPersistentFields = newSerialPersistentFields;            serialVersionUID = newSerialVersionUID;        }    }    //    // END Serialization compatibility stuff     /**     * Default constructor .     */    public  XMLParseException ()    {      super("XML Parse Exception.");    }     /**     * Constructor taking a string.     *     * @param s the detail message.     */    public  XMLParseException (String s)    {      super("XML Parse Exception: " + s);    }    /**     * Constructor taking a string and an exception.     *     * @param e the nested exception.     * @param s the detail message.     */    public  XMLParseException (Exception e, String s)    {      super("XML Parse Exception: " + s + ":" + e.toString());    }     /**     * Deserializes an {@link XMLParseException} from an {@link ObjectInputStream}.     */    private void readObject(ObjectInputStream in)            throws IOException, ClassNotFoundException {      // New serial form ignores extra field "msgStr"      in.defaultReadObject();    }      /**     * Serializes an {@link XMLParseException} to an {@link ObjectOutputStream}.     */    private void writeObject(ObjectOutputStream out)            throws IOException {      if (compat)      {        // Serializes this instance in the old serial form        //        ObjectOutputStream.PutField fields = out.putFields();        fields.put("msgStr", getMessage());        out.writeFields();      }      else      {        // Serializes this instance in the new serial form        //        out.defaultWriteObject();      }    }}