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diff --git a/libjava/java/util/prefs/PreferencesFactory.java b/libjava/java/util/prefs/PreferencesFactory.java
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+/* PreferencesFactory - Preferences system and user root factory interface
+   Copyright (C) 2001 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.util.EventListener;
+
+/**
+ * Preferences system and user root factory interface. Defines how to get
+ * to the system and user root preferences objects. Should be implemented by
+ * new preferences backends.
+ *
+ * @since 1.4
+ * @author Mark Wielaard (mark@klomp.org)
+ */
+public interface PreferencesFactory {
+
+    /**
+     * Returns the system root preferences node. Should always return the
+     * same object.
+     */
+    Preferences systemRoot();
+
+    /**
+     * Returns the user root preferences node. May return different objects
+     * depending on the user that called this method. The user may for example
+     * be determined by the current Thread or the Subject associated with the
+     * current AccessControllContext.
+     */
+    Preferences userRoot();
+
+}