diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/NameBuilder.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/xml/internal/bind/v2/runtime/NameBuilder.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,143 @@
+/*
+ * 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;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+import javax.xml.namespace.QName;
+
+import com.sun.xml.internal.bind.v2.util.QNameMap;
+
+/**
+ * Creates {@link Name}s and assign index numbers to them.
+ *
+ * <p>
+ * During this process, this class also finds out which namespace URIs
+ * are statically known to be un-bindable as the default namespace.
+ * Those are the namespace URIs that are used by attribute names.
+ *
+ * @author Kohsuke Kawaguchi
+ */
+@SuppressWarnings({"StringEquality"})
+public final class NameBuilder {
+    private Map<String,Integer> uriIndexMap = new HashMap<String, Integer>();
+    private Set<String> nonDefaultableNsUris = new HashSet<String>();
+    private Map<String,Integer> localNameIndexMap = new HashMap<String, Integer>();
+    private QNameMap<Integer> elementQNameIndexMap = new QNameMap<Integer>();
+    private QNameMap<Integer> attributeQNameIndexMap = new QNameMap<Integer>();
+
+    public Name createElementName(QName name) {
+        return createElementName(name.getNamespaceURI(),name.getLocalPart());
+    }
+
+    public Name createElementName(String nsUri, String localName) {
+        return createName(nsUri, localName, false, elementQNameIndexMap);
+    }
+
+    public Name createAttributeName(QName name) {
+        return createAttributeName(name.getNamespaceURI(),name.getLocalPart());
+    }
+
+    public Name createAttributeName(String nsUri, String localName) {
+        assert nsUri.intern()==nsUri;
+        assert localName.intern()==localName;
+
+        if(nsUri.length()==0)
+            return new Name(
+                    allocIndex(attributeQNameIndexMap,"",localName),
+                    -1,
+                    nsUri,
+                    allocIndex(localNameIndexMap,localName),
+                    localName,
+                    true);
+        else {
+            nonDefaultableNsUris.add(nsUri);
+            return createName(nsUri,localName, true, attributeQNameIndexMap);
+        }
+    }
+
+    private Name createName(String nsUri, String localName, boolean isAttribute, QNameMap<Integer> map) {
+        assert nsUri.intern()==nsUri;
+        assert localName.intern()==localName;
+
+        return new Name(
+                allocIndex(map,nsUri,localName),
+                allocIndex(uriIndexMap,nsUri),
+                nsUri,
+                allocIndex(localNameIndexMap,localName),
+                localName,
+                isAttribute );
+    }
+
+    private int allocIndex(Map<String,Integer> map, String str) {
+        Integer i = map.get(str);
+        if(i==null) {
+            i = map.size();
+            map.put(str,i);
+        }
+        return i;
+    }
+
+    private int allocIndex(QNameMap<Integer> map, String nsUri, String localName) {
+        Integer i = map.get(nsUri,localName);
+        if(i==null) {
+            i = map.size();
+            map.put(nsUri,localName,i);
+        }
+        return i;
+    }
+
+    /**
+     * Wraps up everything and creates {@link NameList}.
+     */
+    public NameList conclude() {
+        boolean[] nsUriCannotBeDefaulted = new boolean[uriIndexMap.size()];
+        for (Map.Entry<String,Integer> e : uriIndexMap.entrySet()) {
+            nsUriCannotBeDefaulted[e.getValue()] = nonDefaultableNsUris.contains(e.getKey());
+        }
+
+        NameList r = new NameList(
+                list(uriIndexMap),
+                nsUriCannotBeDefaulted,
+                list(localNameIndexMap),
+                elementQNameIndexMap.size(),
+                attributeQNameIndexMap.size() );
+        // delete them so that the create method can never be called again
+        uriIndexMap = null;
+        localNameIndexMap = null;
+        return r;
+    }
+
+    private String[] list(Map<String, Integer> map) {
+        String[] r = new String[map.size()];
+        for (Map.Entry<String, Integer> e : map.entrySet())
+            r[e.getValue()] = e.getKey();
+        return r;
+    }
+}