--- /dev/null	2017-06-15 23:54:40.216962016 +0100
+++ new/jaxws/src/java.xml.ws/share/classes/com/sun/xml/internal/ws/util/MrJarUtil.java	2017-06-16 17:02:06.440661851 +0100
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017, 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.util;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+/**
+ * Utility class used as a JEP 238 multi release jar versioned class.
+ *
+ * Version for {@code runtime >= 9}.
+ */
+public class MrJarUtil {
+
+    /**
+     * Get property used for disabling instance pooling of xml readers / writers.
+     *
+     * @param baseName Name of a {@linkplain com.sun.xml.internal.ws.api.streaming.XMLStreamReaderFactory} class or
+     *                 {@linkplain com.sun.xml.internal.ws.api.streaming.XMLStreamWriterFactory} class.
+     *
+     * @return true if *.noPool system property is not set or is set to true.
+     */
+    public static boolean getNoPoolProperty(String baseName) {
+        return AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
+            @Override
+            public Boolean run() {
+                String noPool = System.getProperty(baseName + ".noPool");
+                return noPool == null || Boolean.parseBoolean(noPool);
+            }
+        });
+    }
+}