diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/ws/policy/NestedPolicy.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/policy/NestedPolicy.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 1997, 2010, 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.policy;
+
+import java.util.Arrays;
+import java.util.Iterator;
+
+/**
+ * A special policy implementation that assures that only no or single policy alternative is possible within this type of policy.
+ *
+ * @author Marek Potociar
+ */
+public final class NestedPolicy extends Policy {
+    private static final String NESTED_POLICY_TOSTRING_NAME = "nested policy";
+
+    private NestedPolicy(final AssertionSet set) {
+        super(NESTED_POLICY_TOSTRING_NAME, Arrays.asList(new AssertionSet[] { set }));
+    }
+
+    private NestedPolicy(final String name, final String policyId, final AssertionSet set) {
+        super(NESTED_POLICY_TOSTRING_NAME, name, policyId, Arrays.asList(new AssertionSet[] { set }));
+    }
+
+    static NestedPolicy createNestedPolicy(final AssertionSet set) {
+        return new NestedPolicy(set);
+    }
+
+    static NestedPolicy createNestedPolicy(final String name, final String policyId, final AssertionSet set) {
+        return new NestedPolicy(name, policyId, set);
+    }
+
+    /**
+     * Returns the AssertionSet instance representing a single policy alterantive held wihtin this nested policy object.
+     * If the nested policy represents a policy with no alternatives (i.e. nothing is allowed) the method returns {@code null}.
+     *
+     * @return nested policy alternative represented by AssertionSet object. May return {@code null} in case the nested policy
+     * represents 'nothing allowed' policy.
+     */
+    public AssertionSet getAssertionSet() {
+        final Iterator<AssertionSet> iterator = iterator();
+        if (iterator.hasNext()) {
+            return iterator.next();
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * An {@code Object.equals(Object obj)} method override.
+     */
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj) {
+            return true;
+        }
+
+        if (!(obj instanceof NestedPolicy)) {
+            return false;
+        }
+
+        final NestedPolicy that = (NestedPolicy) obj;
+
+        return super.equals(that);
+    }
+
+    @Override
+    public int hashCode() {
+        return super.hashCode();
+    }
+
+    /**
+     * An {@code Object.toString()} method override.
+     */
+    @Override
+    public String toString() {
+        return toString(0, new StringBuffer()).toString();
+    }
+
+    /**
+     * A helper method that appends indented string representation of this instance to the input string buffer.
+     *
+     * @param indentLevel indentation level to be used.
+     * @param buffer buffer to be used for appending string representation of this instance
+     * @return modified buffer containing new string representation of the instance
+     */
+    @Override
+    StringBuffer toString(final int indentLevel, final StringBuffer buffer) {
+        return super.toString(indentLevel, buffer);
+    }
+}