diff -r fd16c54261b3 -r 90ce3da70b43 jdk/test/sun/misc/CopyMemory.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sun/misc/CopyMemory.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,217 @@
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ * @bug 6565543
+ * @summary Minimal test for unsafe.copyMemory() and unsafe.setMemory()
+ */
+
+import java.util.*;
+import java.lang.reflect.*;
+import java.nio.*;
+
+import sun.misc.Unsafe;
+
+import sun.nio.ch.DirectBuffer;
+
+public class CopyMemory {
+
+    private final static int BUFFER_SIZE = 1024;
+    private final static int N = 16 * 1024;
+
+    private final static int FILLER = 0x55;
+    private final static int FILLER2 = 0x33;
+
+    private final static Random random = new Random();
+
+    private static void set(byte[] b, int ofs, int len, int value) {
+        for (int i = 0; i < len; i++) {
+            b[ofs + i] = (byte)value;
+        }
+    }
+
+    private static void check(byte[] b, int ofs, int len, int value) {
+        for (int i = 0; i < len; i++) {
+            int r = b[ofs + i] & 0xff;
+            if (r != value) {
+                throw new RuntimeException("mismatch");
+            }
+        }
+    }
+
+    private static void set(Unsafe unsafe, long addr, int ofs, int len, int value) {
+        for (int i = 0; i < len; i++) {
+            unsafe.putByte(null, addr + ofs + i, (byte)value);
+        }
+    }
+
+    private static void check(Unsafe unsafe, long addr, int ofs, int len, int value) {
+        for (int i = 0; i < len; i++) {
+            int r = unsafe.getByte(null, addr + ofs + i) & 0xff;
+            if (r != value) {
+                throw new RuntimeException("mismatch");
+            }
+        }
+    }
+
+    private static final List<ByteBuffer> buffers = new ArrayList<ByteBuffer>();
+
+    private static long getMemory(int n) {
+        ByteBuffer b = ByteBuffer.allocateDirect(n);
+        if (b instanceof DirectBuffer == false) {
+            throw new RuntimeException("Not a direct buffer");
+        }
+        buffers.add(b); // make sure the buffer does not get GCed
+        return ((DirectBuffer)b).address();
+    }
+
+    private static void testSetByteArray(Unsafe unsafe) throws Exception {
+        System.out.println("Testing setMemory() for byte[]...");
+        byte[] b = new byte[BUFFER_SIZE];
+        for (int i = 0; i < N; i++) {
+            set(b, 0, BUFFER_SIZE, FILLER);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            unsafe.setMemory(b, Unsafe.ARRAY_BYTE_BASE_OFFSET + ofs, len, (byte)val);
+            check(b, 0, ofs - 1, FILLER);
+            check(b, ofs, len, val);
+            check(b, ofs + len, BUFFER_SIZE - (ofs + len), FILLER);
+        }
+    }
+
+    private static void testSetRawMemory(Unsafe unsafe) throws Exception {
+        System.out.println("Testing setMemory() for raw memory...");
+        long b = getMemory(BUFFER_SIZE);
+        for (int i = 0; i < N; i++) {
+            set(unsafe, b, 0, BUFFER_SIZE, FILLER);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            unsafe.setMemory(null, b + ofs, len, (byte)val);
+            check(unsafe, b, 0, ofs - 1, FILLER);
+            check(unsafe, b, ofs, len, val);
+            check(unsafe, b, ofs + len, BUFFER_SIZE - (ofs + len), FILLER);
+        }
+    }
+
+    private static void testCopyByteArrayToByteArray(Unsafe unsafe) throws Exception {
+        System.out.println("Testing copyMemory() for byte[] to byte[]...");
+        byte[] b1 = new byte[BUFFER_SIZE];
+        byte[] b2 = new byte[BUFFER_SIZE];
+        for (int i = 0; i < N; i++) {
+            set(b1, 0, BUFFER_SIZE, FILLER);
+            set(b2, 0, BUFFER_SIZE, FILLER2);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            set(b1, ofs, len, val);
+            int ofs2 = random.nextInt(BUFFER_SIZE / 2);
+            unsafe.copyMemory(b1, Unsafe.ARRAY_BYTE_BASE_OFFSET + ofs,
+                b2, Unsafe.ARRAY_BYTE_BASE_OFFSET + ofs2, len);
+            check(b2, 0, ofs2 - 1, FILLER2);
+            check(b2, ofs2, len, val);
+            check(b2, ofs2 + len, BUFFER_SIZE - (ofs2 + len), FILLER2);
+        }
+    }
+
+    private static void testCopyByteArrayToRawMemory(Unsafe unsafe) throws Exception {
+        System.out.println("Testing copyMemory() for byte[] to raw memory...");
+        byte[] b1 = new byte[BUFFER_SIZE];
+        long b2 = getMemory(BUFFER_SIZE);
+        for (int i = 0; i < N; i++) {
+            set(b1, 0, BUFFER_SIZE, FILLER);
+            set(unsafe, b2, 0, BUFFER_SIZE, FILLER2);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            set(b1, ofs, len, val);
+            int ofs2 = random.nextInt(BUFFER_SIZE / 2);
+            unsafe.copyMemory(b1, Unsafe.ARRAY_BYTE_BASE_OFFSET + ofs,
+                null, b2 + ofs2, len);
+            check(unsafe, b2, 0, ofs2 - 1, FILLER2);
+            check(unsafe, b2, ofs2, len, val);
+            check(unsafe, b2, ofs2 + len, BUFFER_SIZE - (ofs2 + len), FILLER2);
+        }
+    }
+
+    private static void testCopyRawMemoryToByteArray(Unsafe unsafe) throws Exception {
+        System.out.println("Testing copyMemory() for raw memory to byte[]...");
+        long b1 = getMemory(BUFFER_SIZE);
+        byte[] b2 = new byte[BUFFER_SIZE];
+        for (int i = 0; i < N; i++) {
+            set(unsafe, b1, 0, BUFFER_SIZE, FILLER);
+            set(b2, 0, BUFFER_SIZE, FILLER2);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            set(unsafe, b1, ofs, len, val);
+            int ofs2 = random.nextInt(BUFFER_SIZE / 2);
+            unsafe.copyMemory(null, b1 + ofs,
+                b2, Unsafe.ARRAY_BYTE_BASE_OFFSET + ofs2, len);
+            check(b2, 0, ofs2 - 1, FILLER2);
+            check(b2, ofs2, len, val);
+            check(b2, ofs2 + len, BUFFER_SIZE - (ofs2 + len), FILLER2);
+        }
+    }
+
+    private static void testCopyRawMemoryToRawMemory(Unsafe unsafe) throws Exception {
+        System.out.println("Testing copyMemory() for raw memory to raw memory...");
+        long b1 = getMemory(BUFFER_SIZE);
+        long b2 = getMemory(BUFFER_SIZE);
+        for (int i = 0; i < N; i++) {
+            set(unsafe, b1, 0, BUFFER_SIZE, FILLER);
+            set(unsafe, b2, 0, BUFFER_SIZE, FILLER2);
+            int ofs = random.nextInt(BUFFER_SIZE / 2);
+            int len = random.nextInt(BUFFER_SIZE / 2);
+            int val = random.nextInt(256);
+            set(unsafe, b1, ofs, len, val);
+            int ofs2 = random.nextInt(BUFFER_SIZE / 2);
+            unsafe.copyMemory(null, b1 + ofs,
+                null, b2 + ofs2, len);
+            check(unsafe, b2, 0, ofs2 - 1, FILLER2);
+            check(unsafe, b2, ofs2, len, val);
+            check(unsafe, b2, ofs2 + len, BUFFER_SIZE - (ofs2 + len), FILLER2);
+        }
+    }
+
+    private static Unsafe getUnsafe() throws Exception {
+        Field f = Unsafe.class.getDeclaredField("theUnsafe");
+        f.setAccessible(true);
+        return (Unsafe)f.get(null);
+    }
+
+    public static void main(String[] args) throws Exception {
+        Unsafe unsafe = getUnsafe();
+
+        testSetByteArray(unsafe);
+        testSetRawMemory(unsafe);
+        testCopyByteArrayToByteArray(unsafe);
+        testCopyByteArrayToRawMemory(unsafe);
+        testCopyRawMemoryToByteArray(unsafe);
+        testCopyRawMemoryToRawMemory(unsafe);
+
+        System.out.println("OK");
+    }
+
+}