diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/TagName.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/unmarshaller/TagName.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 1997, 2011, 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.bind.v2.runtime.unmarshaller;
+
+import javax.xml.namespace.QName;
+
+import com.sun.xml.internal.bind.v2.runtime.Name;
+
+import org.xml.sax.Attributes;
+
+/**
+ * Represents an XML tag name (and attributes for start tags.)
+ *
+ * <p>
+ * This object is used so reduce the number of method call parameters
+ * among unmarshallers.
+ *
+ * An instance of this is expected to be reused by the caller of
+ * {@link XmlVisitor}. Note that the rest of the unmarshaller may
+ * modify any of the fields while processing an event (such as to
+ * intern strings, replace attributes),
+ * so {@link XmlVisitor} should reset all fields for each use.
+ *
+ * <p>
+ * The 'qname' parameter, which holds the qualified name of the tag
+ * (such as 'foo:bar' or 'zot'), is not used in the typical unmarshalling
+ * route and it's also expensive to compute for some input.
+ * Thus this parameter is computed lazily.
+ *
+ * @author Kohsuke Kawaguchi
+ */
+@SuppressWarnings({"StringEquality"})
+public abstract class TagName {
+    /**
+     * URI of the attribute/element name.
+     *
+     * Can be empty, but never null. Interned.
+     */
+    public String uri;
+    /**
+     * Local part of the attribute/element name.
+     *
+     * Never be null. Interned.
+     */
+    public String local;
+
+    /**
+     * Used only for the enterElement event.
+     * Otherwise the value is undefined.
+     *
+     * This might be {@link AttributesEx}.
+     */
+    public Attributes atts;
+
+    public TagName() {
+    }
+
+    /**
+     * Checks if the given name pair matches this name.
+     */
+    public final boolean matches( String nsUri, String local ) {
+        return this.uri==nsUri && this.local==local;
+    }
+
+    /**
+     * Checks if the given name pair matches this name.
+     */
+    public final boolean matches( Name name ) {
+        return this.local==name.localName && this.uri==name.nsUri;
+    }
+
+//    /**
+//     * @return
+//     *      Can be empty but always non-null. NOT interned.
+//     */
+//    public final String getPrefix() {
+//        int idx = qname.indexOf(':');
+//        if(idx<0)   return "";
+//        else        return qname.substring(0,idx);
+//    }
+
+    public String toString() {
+        return '{'+uri+'}'+local;
+    }
+
+    /**
+     * Gets the qualified name of the tag.
+     *
+     * @return never null.
+     */
+    public abstract String getQname();
+
+    /**
+     * Gets the prefix. This is slow.
+     *
+     * @return can be "" but never null.
+     */
+    public String getPrefix() {
+        String qname = getQname();
+        int idx = qname.indexOf(':');
+        if(idx<0)   return "";
+        else        return qname.substring(0,idx);
+    }
+
+    /**
+     * Creates {@link QName}.
+     */
+    public QName createQName() {
+        return new QName(uri,local,getPrefix());
+    }
+}