--- a/jdk/src/share/classes/java/util/concurrent/ConcurrentLinkedDeque.java	Tue Feb 22 15:34:17 2011 -0800
+++ b/jdk/src/share/classes/java/util/concurrent/ConcurrentLinkedDeque.java	Wed Feb 23 14:56:44 2011 +0000
@@ -272,13 +272,6 @@
 
     private static final Node<Object> PREV_TERMINATOR, NEXT_TERMINATOR;
 
-    static {
-        PREV_TERMINATOR = new Node<Object>(null);
-        PREV_TERMINATOR.next = PREV_TERMINATOR;
-        NEXT_TERMINATOR = new Node<Object>(null);
-        NEXT_TERMINATOR.prev = NEXT_TERMINATOR;
-    }
-
     @SuppressWarnings("unchecked")
     Node<E> prevTerminator() {
         return (Node<E>) PREV_TERMINATOR;
@@ -294,6 +287,9 @@
         volatile E item;
         volatile Node<E> next;
 
+        Node() {  // default constructor for NEXT_TERMINATOR, PREV_TERMINATOR
+        }
+
         /**
          * Constructs a new node.  Uses relaxed write because item can
          * only be seen after publication via casNext or casPrev.
@@ -324,14 +320,25 @@
 
         // Unsafe mechanics
 
-        private static final sun.misc.Unsafe UNSAFE =
-            sun.misc.Unsafe.getUnsafe();
-        private static final long prevOffset =
-            objectFieldOffset(UNSAFE, "prev", Node.class);
-        private static final long itemOffset =
-            objectFieldOffset(UNSAFE, "item", Node.class);
-        private static final long nextOffset =
-            objectFieldOffset(UNSAFE, "next", Node.class);
+        private static final sun.misc.Unsafe UNSAFE;
+        private static final long prevOffset;
+        private static final long itemOffset;
+        private static final long nextOffset;
+
+        static {
+            try {
+                UNSAFE = sun.misc.Unsafe.getUnsafe();
+                Class k = Node.class;
+                prevOffset = UNSAFE.objectFieldOffset
+                    (k.getDeclaredField("prev"));
+                itemOffset = UNSAFE.objectFieldOffset
+                    (k.getDeclaredField("item"));
+                nextOffset = UNSAFE.objectFieldOffset
+                    (k.getDeclaredField("next"));
+            } catch (Exception e) {
+                throw new Error(e);
+            }
+        }
     }
 
     /**
@@ -1422,14 +1429,6 @@
         initHeadTail(h, t);
     }
 
-    // Unsafe mechanics
-
-    private static final sun.misc.Unsafe UNSAFE =
-        sun.misc.Unsafe.getUnsafe();
-    private static final long headOffset =
-        objectFieldOffset(UNSAFE, "head", ConcurrentLinkedDeque.class);
-    private static final long tailOffset =
-        objectFieldOffset(UNSAFE, "tail", ConcurrentLinkedDeque.class);
 
     private boolean casHead(Node<E> cmp, Node<E> val) {
         return UNSAFE.compareAndSwapObject(this, headOffset, cmp, val);
@@ -1439,15 +1438,25 @@
         return UNSAFE.compareAndSwapObject(this, tailOffset, cmp, val);
     }
 
-    static long objectFieldOffset(sun.misc.Unsafe UNSAFE,
-                                  String field, Class<?> klazz) {
+    // Unsafe mechanics
+
+    private static final sun.misc.Unsafe UNSAFE;
+    private static final long headOffset;
+    private static final long tailOffset;
+    static {
+        PREV_TERMINATOR = new Node<Object>();
+        PREV_TERMINATOR.next = PREV_TERMINATOR;
+        NEXT_TERMINATOR = new Node<Object>();
+        NEXT_TERMINATOR.prev = NEXT_TERMINATOR;
         try {
-            return UNSAFE.objectFieldOffset(klazz.getDeclaredField(field));
-        } catch (NoSuchFieldException e) {
-            // Convert Exception to corresponding Error
-            NoSuchFieldError error = new NoSuchFieldError(field);
-            error.initCause(e);
-            throw error;
+            UNSAFE = sun.misc.Unsafe.getUnsafe();
+            Class k = ConcurrentLinkedDeque.class;
+            headOffset = UNSAFE.objectFieldOffset
+                (k.getDeclaredField("head"));
+            tailOffset = UNSAFE.objectFieldOffset
+                (k.getDeclaredField("tail"));
+        } catch (Exception e) {
+            throw new Error(e);
         }
     }
 }