diff -r 000000000000 -r 373ffda63c9a src/share/jaxws_classes/com/sun/xml/internal/ws/policy/PolicyIntersector.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/jaxws_classes/com/sun/xml/internal/ws/policy/PolicyIntersector.java	Wed Apr 27 01:27:09 2016 +0800
@@ -0,0 +1,152 @@
+/*
+ * 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 com.sun.xml.internal.ws.policy.privateutil.PolicyLogger;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import com.sun.xml.internal.ws.policy.privateutil.LocalizationMessages;
+import com.sun.xml.internal.ws.policy.sourcemodel.wspolicy.NamespaceVersion;
+import java.util.ArrayList;
+
+/**
+ * The instance of this class is intended to provide policy intersection mechanism.
+ *
+ * @author Marek Potociar (marek.potociar@sun.com)
+ */
+public final class PolicyIntersector {
+    static enum CompatibilityMode {
+        STRICT,
+        LAX
+    }
+
+    private static final PolicyIntersector STRICT_INTERSECTOR = new PolicyIntersector(CompatibilityMode.STRICT);
+    private static final PolicyIntersector LAX_INTERSECTOR = new PolicyIntersector(CompatibilityMode.LAX);
+    private static final PolicyLogger LOGGER = PolicyLogger.getLogger(PolicyIntersector.class);
+
+    private CompatibilityMode mode;
+
+    /**
+     * Prevents direct instantiation of this class from outside
+     * @param intersectionMode intersection mode
+     */
+    private PolicyIntersector(CompatibilityMode intersectionMode) {
+        this.mode = intersectionMode;
+    }
+
+    /**
+     * Returns a strict policy intersector that can be used to intersect group of policies.
+     *
+     * @return policy intersector instance.
+     */
+    public static PolicyIntersector createStrictPolicyIntersector() {
+        return PolicyIntersector.STRICT_INTERSECTOR;
+    }
+
+    /**
+     * Returns a strict policy intersector that can be used to intersect group of policies.
+     *
+     * @return policy intersector instance.
+     */
+    public static PolicyIntersector createLaxPolicyIntersector() {
+        return PolicyIntersector.LAX_INTERSECTOR;
+    }
+
+    /**
+     * Performs intersection on the input collection of policies and returns the resulting (intersected) policy. If input policy
+     * collection contains only a single policy instance, no intersection is performed and the instance is directly returned
+     * as a method call result.
+     *
+     * @param policies collection of policies to be intersected. Must not be {@code null} nor empty, otherwise exception is thrown.
+     * @return intersected policy as a result of perfromed policy intersection. A {@code null} value is never returned.
+     *
+     * @throws IllegalArgumentException in case {@code policies} argument is either {@code null} or empty collection.
+     */
+    public Policy intersect(final Policy... policies) {
+        if (policies == null || policies.length == 0) {
+            throw LOGGER.logSevereException(new IllegalArgumentException(LocalizationMessages.WSP_0056_NEITHER_NULL_NOR_EMPTY_POLICY_COLLECTION_EXPECTED()));
+        } else if (policies.length == 1) {
+            return policies[0];
+        }
+
+        // check for "null" and "empty" policy: if such policy is found return "null" policy,
+        // or if all policies are "empty", return "empty" policy
+        boolean found = false;
+        boolean allPoliciesEmpty = true;
+        NamespaceVersion latestVersion = null;
+        for (Policy tested : policies) {
+            if (tested.isEmpty()) {
+                found = true;
+            } else {
+                if (tested.isNull()) {
+                    found = true;
+                }
+                allPoliciesEmpty = false;
+            }
+            if (latestVersion == null) {
+                latestVersion = tested.getNamespaceVersion();
+            } else if (latestVersion.compareTo(tested.getNamespaceVersion()) < 0) {
+                latestVersion = tested.getNamespaceVersion();
+            }
+
+            if (found && !allPoliciesEmpty) {
+                return Policy.createNullPolicy(latestVersion, null, null);
+            }
+        }
+        latestVersion = (latestVersion != null) ? latestVersion : NamespaceVersion.getLatestVersion();
+        if (allPoliciesEmpty) {
+            return Policy.createEmptyPolicy(latestVersion, null, null);
+        }
+
+        // simple tests didn't lead to final answer => let's performe some intersecting ;)
+        final List<AssertionSet> finalAlternatives = new LinkedList<AssertionSet>(policies[0].getContent());
+        final Queue<AssertionSet> testedAlternatives = new LinkedList<AssertionSet>();
+        final List<AssertionSet> alternativesToMerge = new ArrayList<AssertionSet>(2);
+        for (int i = 1; i < policies.length; i++) {
+            final Collection<AssertionSet> currentAlternatives = policies[i].getContent();
+
+            testedAlternatives.clear();
+            testedAlternatives.addAll(finalAlternatives);
+            finalAlternatives.clear();
+
+            AssertionSet testedAlternative;
+            while ((testedAlternative = testedAlternatives.poll()) != null) {
+                for (AssertionSet currentAlternative : currentAlternatives) {
+                    if (testedAlternative.isCompatibleWith(currentAlternative, this.mode)) {
+                        alternativesToMerge.add(testedAlternative);
+                        alternativesToMerge.add(currentAlternative);
+                        finalAlternatives.add(AssertionSet.createMergedAssertionSet(alternativesToMerge));
+                        alternativesToMerge.clear();
+                    }
+                }
+            }
+        }
+
+        return Policy.createPolicy(latestVersion, null, null, finalAlternatives);
+    }
+}