--- /dev/null	2015-11-20 13:33:03.000000000 -0800
+++ new/src/java.desktop/share/classes/sun/java2d/marlin/OffHeapArray.java	2015-11-20 13:33:03.000000000 -0800
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2007, 2015, 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 sun.java2d.marlin;
+
+import java.lang.ref.PhantomReference;
+import java.lang.ref.ReferenceQueue;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.Vector;
+import static sun.java2d.marlin.MarlinConst.logUnsafeMalloc;
+import sun.awt.util.ThreadGroupUtils;
+import jdk.internal.misc.Unsafe;
+
+/**
+ *
+ * @author bourgesl
+ */
+final class OffHeapArray  {
+
+    // unsafe reference
+    static final Unsafe unsafe;
+    // size of int / float
+    static final int SIZE_INT;
+
+    // RendererContext reference queue
+    private static final ReferenceQueue<Object> rdrQueue
+        = new ReferenceQueue<Object>();
+    // reference list
+    private static final Vector<OffHeapReference> refList
+        = new Vector<OffHeapReference>(32);
+
+    static {
+        unsafe   = Unsafe.getUnsafe();
+        SIZE_INT = Unsafe.ARRAY_INT_INDEX_SCALE;
+
+        // Mimics Java2D Disposer:
+        AccessController.doPrivileged(
+            (PrivilegedAction<Void>) () -> {
+                /*
+                 * The thread must be a member of a thread group
+                 * which will not get GCed before VM exit.
+                 * Make its parent the top-level thread group.
+                 */
+                final ThreadGroup rootTG
+                    = ThreadGroupUtils.getRootThreadGroup();
+                final Thread t = new Thread(rootTG, new OffHeapDisposer(),
+                    "MarlinRenderer Disposer");
+                t.setContextClassLoader(null);
+                t.setDaemon(true);
+                t.setPriority(Thread.MAX_PRIORITY);
+                t.start();
+                return null;
+            }
+        );
+    }
+
+    /* members */
+    long address;
+    long length;
+    int  used;
+
+    OffHeapArray(final Object parent, final long len) {
+        // note: may throw OOME:
+        this.address = unsafe.allocateMemory(len);
+        this.length  = len;
+        this.used    = 0;
+        if (logUnsafeMalloc) {
+            MarlinUtils.logInfo(System.currentTimeMillis()
+                                + ": OffHeapArray.allocateMemory = "
+                                + len + " to addr = " + this.address);
+        }
+
+        // Create the phantom reference to ensure freeing off-heap memory:
+        refList.add(new OffHeapReference(parent, this));
+    }
+
+    /*
+     * As realloc may change the address, updating address is MANDATORY
+     * @param len new array length
+     * @throws OutOfMemoryError if the allocation is refused by the system
+     */
+    void resize(final long len) {
+        // note: may throw OOME:
+        this.address = unsafe.reallocateMemory(address, len);
+        this.length  = len;
+        if (logUnsafeMalloc) {
+            MarlinUtils.logInfo(System.currentTimeMillis()
+                                + ": OffHeapArray.reallocateMemory = "
+                                + len + " to addr = " + this.address);
+        }
+    }
+
+    void free() {
+        unsafe.freeMemory(this.address);
+        if (logUnsafeMalloc) {
+            MarlinUtils.logInfo(System.currentTimeMillis()
+                                + ": OffHeapEdgeArray.free = "
+                                + this.length
+                                + " at addr = " + this.address);
+        }
+    }
+
+    void fill(final byte val) {
+        unsafe.setMemory(this.address, this.length, val);
+    }
+
+    static final class OffHeapReference extends PhantomReference<Object> {
+
+        private final OffHeapArray array;
+
+        OffHeapReference(final Object parent, final OffHeapArray edges) {
+            super(parent, rdrQueue);
+            this.array = edges;
+        }
+
+        void dispose() {
+            // free off-heap blocks
+            this.array.free();
+        }
+    }
+
+    static final class OffHeapDisposer implements Runnable {
+        @Override
+        public void run() {
+            final Thread currentThread = Thread.currentThread();
+            OffHeapReference ref;
+
+            // check interrupted:
+            for (; !currentThread.isInterrupted();) {
+                try {
+                    ref = (OffHeapReference)rdrQueue.remove();
+                    ref.dispose();
+
+                    refList.remove(ref);
+
+                } catch (InterruptedException ie) {
+                    MarlinUtils.logException("OffHeapDisposer interrupted:",
+                                             ie);
+                }
+            }
+        }
+    }
+}