diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/ws/streaming/XMLStreamWriterUtil.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/streaming/XMLStreamWriterUtil.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
+ * 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.
+ */
+
+package com.sun.xml.internal.ws.streaming;
+
+import com.sun.istack.internal.Nullable;
+import com.sun.xml.internal.ws.encoding.HasEncoding;
+import com.sun.xml.internal.ws.encoding.SOAPBindingCodec;
+
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLStreamWriter;
+import javax.xml.stream.XMLStreamException;
+import java.util.Map;
+import java.io.OutputStream;
+
+/**
+ * <p>XMLStreamWriterUtil provides some utility methods intended to be used
+ * in conjunction with a StAX XMLStreamWriter. </p>
+ *
+ * @author Santiago.PericasGeertsen@sun.com
+ */
+public class XMLStreamWriterUtil {
+
+    private XMLStreamWriterUtil() {
+    }
+
+    /**
+     * Gives the underlying stream for XMLStreamWriter. It closes any start elements, and returns the stream so
+     * that JAXB can write infoset directly to the stream.
+     *
+     * @param writer XMLStreamWriter for which stream is required
+     * @return  underlying OutputStream, null if writer doesn't provide a way to get it
+     * @throws XMLStreamException if any of writer operations throw the exception
+     */
+    public static @Nullable OutputStream getOutputStream(XMLStreamWriter writer) throws XMLStreamException {
+        Object obj = null;
+
+        // Hack for JDK6's SJSXP
+        if (writer instanceof Map) {
+            obj = ((Map) writer).get("sjsxp-outputstream");
+        }
+
+        // woodstox
+        if (obj == null) {
+            try {
+                obj = writer.getProperty("com.ctc.wstx.outputUnderlyingStream");
+            } catch(Exception ie) {
+                // Catch all exceptions. SJSXP in JDK throws NPE
+                // nothing to do here
+            }
+        }
+
+        // SJSXP
+        if (obj == null) {
+            try {
+                obj = writer.getProperty("http://java.sun.com/xml/stream/properties/outputstream");
+            } catch(Exception ie) {
+                // Catch all exceptions. SJSXP in JDK throws NPE
+                // nothing to do here
+            }
+        }
+
+
+        if (obj != null) {
+            writer.writeCharacters("");  // Force completion of open elems
+            writer.flush();
+            return (OutputStream)obj;
+        }
+        return null;
+    }
+
+    /**
+     * Gives the encoding with which XMLStreamWriter is created.
+     *
+     * @param writer XMLStreamWriter for which encoding is required
+     * @return null if cannot be found, else the encoding
+     */
+    public static @Nullable String getEncoding(XMLStreamWriter writer) {
+        /*
+         * TODO Add reflection logic to handle woodstox writer
+         * as it implements XMLStreamWriter2#getEncoding()
+         * It's not that important since woodstox writer is typically wrapped
+         * in a writer with HasEncoding
+         */
+        return (writer instanceof HasEncoding)
+                ? ((HasEncoding)writer).getEncoding()
+                : null;
+    }
+
+    public static String encodeQName(XMLStreamWriter writer, QName qname,
+        PrefixFactory prefixFactory)
+    {
+        // NOTE: Here it is assumed that we do not serialize using default
+        // namespace declarations and therefore that writer.getPrefix will
+        // never return ""
+
+        try {
+            String namespaceURI = qname.getNamespaceURI();
+            String localPart = qname.getLocalPart();
+
+            if (namespaceURI == null || namespaceURI.equals("")) {
+                return localPart;
+            }
+            else {
+                String prefix = writer.getPrefix(namespaceURI);
+                if (prefix == null) {
+                    prefix = prefixFactory.getPrefix(namespaceURI);
+                    writer.writeNamespace(prefix, namespaceURI);
+                }
+                return prefix + ":" + localPart;
+            }
+        }
+        catch (XMLStreamException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}