diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/tools/internal/xjc/model/nav/NType.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/tools/internal/xjc/model/nav/NType.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,77 @@
+/*
+ * 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.tools.internal.xjc.model.nav;
+
+import com.sun.codemodel.internal.JType;
+import com.sun.tools.internal.xjc.outline.Aspect;
+import com.sun.tools.internal.xjc.outline.Outline;
+
+/**
+ * A type.
+ *
+ * See the package documentaion for details.
+ *
+ * @author Kohsuke Kawaguchi
+ */
+public interface NType {
+    /**
+     * Returns the representation of this type in code model.
+     * <p>
+     * This operation requires the whole model to be built,
+     * and hence it takes {@link Outline}.
+     * <p>
+     * Under some code generation strategy, some bean classes
+     * are considered implementation specific (such as impl.FooImpl class)
+     * These classes always have accompanying "exposed" type (such as
+     * the Foo interface).
+     * <p>
+     * For such Jekyll and Hyde type, the aspect parameter determines
+     * which personality is returned.
+     *
+     * @param aspect
+     *      If {@link Aspect#IMPLEMENTATION}, this method returns the
+     *      implementation specific class that this type represents.
+     *      If {@link Aspect#EXPOSED}, this method returns the
+     *      publicly exposed type that this type represents.
+     *
+     *      For ordinary classes, the aspect parameter is meaningless.
+     *
+     */
+    JType toType(Outline o, Aspect aspect);
+
+    /**
+     * Returns true iff this type represents a class that has a unboxed form.
+     *
+     * For example, for {@link String} this is false, but for {@link Integer}
+     * this is true.
+     */
+    boolean isBoxedType();
+
+    /**
+     * Human readable name of this type.
+     */
+    String fullName();
+}