--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/org/w3c/dom/xpath/XPathNSResolver.java	Thu Apr 12 08:38:26 2012 -0700
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+/*
+ * This file is available under and governed by the GNU General Public
+ * License version 2 only, as published by the Free Software Foundation.
+ * However, the following notice accompanied the original version of this
+ * file and, per its terms, should not be removed:
+ *
+ * Copyright (c) 2002 World Wide Web Consortium,
+ * (Massachusetts Institute of Technology, Institut National de
+ * Recherche en Informatique et en Automatique, Keio University). All
+ * Rights Reserved. This program is distributed under the W3C's Software
+ * Intellectual Property License. This program 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 W3C License http://www.w3.org/Consortium/Legal/ for more details.
+ */
+
+package org.w3c.dom.xpath;
+
+
+/**
+ * The <code>XPathNSResolver</code> interface permit <code>prefix</code>
+ * strings in the expression to be properly bound to
+ * <code>namespaceURI</code> strings. <code>XPathEvaluator</code> can
+ * construct an implementation of <code>XPathNSResolver</code> from a node,
+ * or the interface may be implemented by any application.
+ * <p>See also the <a href='http://www.w3.org/2002/08/WD-DOM-Level-3-XPath-20020820'>Document Object Model (DOM) Level 3 XPath Specification</a>.
+ */
+public interface XPathNSResolver {
+    /**
+     * Look up the namespace URI associated to the given namespace prefix. The
+     * XPath evaluator must never call this with a <code>null</code> or
+     * empty argument, because the result of doing this is undefined.
+     * @param prefix The prefix to look for.
+     * @return Returns the associated namespace URI or <code>null</code> if
+     *   none is found.
+     */
+    public String lookupNamespaceURI(String prefix);
+
+}