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diff --git a/gnu/javax/net/ssl/provider/Builder.java b/gnu/javax/net/ssl/provider/Builder.java
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+/* Builder.java -- builder interface for protocol objects.
+   Copyright (C) 2006  Free Software Foundation, Inc.
+
+This file is a 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 of the License, 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; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, 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 gnu.javax.net.ssl.provider;
+
+import java.nio.ByteBuffer;
+
+/**
+ * The base interface for classes that build SSL protocol objects. The
+ * general contract for Builder implementations is that they maintain a
+ * buffer that grows to fit the object being built; the allocated size of
+ * this buffer may be larger than the built object needs, but the general
+ * effort will be not to allocate too large a buffer.
+ * 
+ * <p>Once the object is built, through various <em>setters</em> for
+ * the object's attributes, the final buffer may be retrieved with the
+ * {@link #buffer()} method.
+ * 
+ * @author Casey Marshall (csm@gnu.org)
+ */
+public interface Builder extends Constructed
+{
+  /**
+   * Returns the final buffer, possibly containing the built object. The
+   * returned buffer will be "trimmed" to size: its position will be zero,
+   * and its limit and capacity set to the length of the built object.
+   * 
+   * @return The underlying buffer.
+   */
+  ByteBuffer buffer();
+}