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diff --git a/libjava/classpath/javax/net/ServerSocketFactory.java b/libjava/classpath/javax/net/ServerSocketFactory.java
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+/* ServerSocketFactory.java -- factory for server sockets.
+   Copyright (C) 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 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 javax.net;
+
+import java.io.IOException;
+
+import java.net.InetAddress;
+import java.net.ServerSocket;
+
+import java.security.Security;
+
+/**
+ * A factory for server sockets. The purpose of this class is to serve
+ * as the superclass of server socket factories that produce server
+ * sockets of a particular type, such as <i>Secure Socket Layer</i>
+ * (<b>SSL</b>) server sockets.
+ *
+ * @author Casey Marshall (rsdio@metastatic.org)
+ */
+public abstract class ServerSocketFactory
+{
+
+  // Constructors.
+  // ------------------------------------------------------------------------
+
+  /**
+   * Default 0-argument constructor.
+   */
+  protected ServerSocketFactory()
+  {
+    super();
+  }
+
+  // Class methods.
+  // ------------------------------------------------------------------------
+
+  /**
+   * Returns the default server socket factory. The type of factory
+   * returned may depend upon the installation.
+   *
+   * @return The default server socket factory.
+   */
+  public static synchronized ServerSocketFactory getDefault()
+  {
+    try
+      {
+        String s = Security.getProperty("gnu.defaultServerSocketFactory");
+        if (s != null)
+          {
+            Class c = Class.forName(s);
+            return (ServerSocketFactory) c.newInstance();
+          }
+      }
+    catch (Exception e)
+      {
+      }
+    return new VanillaServerSocketFactory();
+  }
+
+  // Instance methods.
+  // ------------------------------------------------------------------------
+
+  /**
+   * Create an unbound server socket.
+   *
+   * @return The new server socket.
+   * @throws IOException If a networking error occurs.
+   */
+  public ServerSocket createServerSocket() throws IOException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Create a server socket bound to the given port.
+   *
+   * @param port The port to bind the server socket to.
+   * @return A server socket bound to <i>port</i>.
+   * @throws IOException If a networking error occurs.
+   */
+  public abstract ServerSocket createServerSocket(int port) throws IOException;
+
+  public abstract ServerSocket createServerSocket(int port, int backlog) throws IOException;
+
+  public abstract ServerSocket createServerSocket(int port, int backlog, InetAddress bindAddress) throws IOException;
+}