--- /dev/null	2016-04-29 10:56:31.000000000 -0700
+++ new/modules/graphics/src/main/java/com/sun/javafx/scene/paint/MaterialHelper.java	2016-04-29 10:56:30.577351400 -0700
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2016, 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.javafx.scene.paint;
+
+import com.sun.javafx.sg.prism.NGPhongMaterial;
+import javafx.beans.property.BooleanProperty;
+import javafx.scene.paint.Material;
+
+
+/**
+ * Used to access internal methods of Material.
+ */
+public class MaterialHelper {
+
+    private static MaterialAccessor materialAccessor;
+
+    static {
+        forceInit(Material.class);
+    }
+
+    private MaterialHelper() {
+    }
+
+    public static BooleanProperty dirtyProperty(Material material) {
+        return materialAccessor.dirtyProperty(material);
+    }
+
+    public static void updatePG(Material material) {
+        materialAccessor.updatePG(material);
+    }
+
+    public static NGPhongMaterial getNGMaterial(Material material) {
+        return materialAccessor.getNGMaterial(material);
+    }
+
+    public static void setMaterialAccessor(final MaterialAccessor newAccessor) {
+        if (materialAccessor != null) {
+            throw new IllegalStateException();
+        }
+
+        materialAccessor = newAccessor;
+    }
+
+    public interface MaterialAccessor {
+        BooleanProperty dirtyProperty(Material material);
+        void updatePG(Material material);
+        NGPhongMaterial getNGMaterial(Material material);
+    }
+
+    private static void forceInit(final Class<?> classToInit) {
+        try {
+            Class.forName(classToInit.getName(), true,
+                    classToInit.getClassLoader());
+        } catch (final ClassNotFoundException e) {
+            throw new AssertionError(e);  // Can't happen
+        }
+    }
+}