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diff --git a/libjava/java/util/prefs/BackingStoreException.java b/libjava/java/util/prefs/BackingStoreException.java
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+++ b/libjava/java/util/prefs/BackingStoreException.java
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+/* BackingStoreException.java - chained exception thrown when backing store
+   fails
+   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package java.util.prefs;
+
+import java.io.ObjectOutputStream;
+import java.io.ObjectInputStream;
+import java.io.NotSerializableException;
+
+/**
+ * Chained exception thrown when backing store fails. This exception is
+ * only thrown from methods that actually have to access the backing store,
+ * such as <code>clear(), keys(), childrenNames(), nodeExists(), removeNode(),
+ * flush(), sync(), exportNode(), exportSubTree()</code>; normal operations
+ * do not throw BackingStoreExceptions.
+ *
+ * <p>Note that although this class inherits the Serializable interface, an
+ * attempt to serialize will fail with a <code>NotSerializableException</code>.
+ *
+ * @author Mark Wielaard <mark@klomp.org>
+ * @since 1.4
+ * @status updated to 1.4
+ */
+public class BackingStoreException extends Exception
+{
+  static final long serialVersionUID = 859796500401108469L;
+
+  /**
+   * Creates a new exception with a descriptive message.
+   *
+   * @param message the message
+   */
+  public BackingStoreException(String message)
+  {
+    super(message);
+  }
+
+  /**
+   * Create a new exception with the given cause.
+   *
+   * @param cause the cause
+   */
+  public BackingStoreException(Throwable cause)
+  {
+    super(cause);
+  }
+
+  /**
+   * This class should not be serialized.
+   *
+   * @param o the output stream
+   */
+  private void writeObject(ObjectOutputStream o) throws NotSerializableException
+  {
+    throw new NotSerializableException
+      ("java.util.prefs.BackingStoreException");
+  }
+
+  /**
+   * This class should not be serialized.
+   *
+   * @param i the input stream
+   */
+  private void readObject(ObjectInputStream i) throws NotSerializableException
+  {
+    throw new NotSerializableException
+      ("java.util.prefs.BackingStoreException");
+  }
+}