--- jsr166/src/jsr166y/ForkJoinTask.java	2009/07/24 22:05:22	1.15
+++ jsr166/src/jsr166y/ForkJoinTask.java	2009/07/25 00:34:00	1.17
@@ -5,12 +5,15 @@
  */
 
 package jsr166y;
-import java.io.Serializable;
-import java.util.*;
+
 import java.util.concurrent.*;
-import java.util.concurrent.atomic.*;
-import sun.misc.Unsafe;
-import java.lang.reflect.*;
+
+import java.io.Serializable;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.WeakHashMap;
 
 /**
  * Abstract base class for tasks that run within a {@link
@@ -1063,46 +1066,45 @@ public abstract class ForkJoinTask<V> im
             setDoneExceptionally((Throwable) ex);
     }
 
-    // Temporary Unsafe mechanics for preliminary release
-    private static Unsafe getUnsafe() throws Throwable {
+    // Unsafe mechanics for jsr166y 3rd party package.
+    private static sun.misc.Unsafe getUnsafe() {
         try {
-            return Unsafe.getUnsafe();
+            return sun.misc.Unsafe.getUnsafe();
         } catch (SecurityException se) {
             try {
                 return java.security.AccessController.doPrivileged
-                    (new java.security.PrivilegedExceptionAction<Unsafe>() {
-                        public Unsafe run() throws Exception {
-                            return getUnsafePrivileged();
+                    (new java.security.PrivilegedExceptionAction<sun.misc.Unsafe>() {
+                        public sun.misc.Unsafe run() throws Exception {
+                            return getUnsafeByReflection();
                         }});
             } catch (java.security.PrivilegedActionException e) {
-                throw e.getCause();
+                throw new RuntimeException("Could not initialize intrinsics",
+                                           e.getCause());
             }
         }
     }
 
-    private static Unsafe getUnsafePrivileged()
+    private static sun.misc.Unsafe getUnsafeByReflection()
             throws NoSuchFieldException, IllegalAccessException {
-        Field f = Unsafe.class.getDeclaredField("theUnsafe");
+        java.lang.reflect.Field f =
+            sun.misc.Unsafe.class.getDeclaredField("theUnsafe");
         f.setAccessible(true);
-        return (Unsafe) f.get(null);
+        return (sun.misc.Unsafe) f.get(null);
     }
 
-    private static long fieldOffset(String fieldName)
-            throws NoSuchFieldException {
-        return UNSAFE.objectFieldOffset
-            (ForkJoinTask.class.getDeclaredField(fieldName));
-    }
-
-    static final Unsafe UNSAFE;
-    static final long statusOffset;
-
-    static {
+    private static long fieldOffset(String fieldName, Class<?> klazz) {
         try {
-            UNSAFE = getUnsafe();
-            statusOffset = fieldOffset("status");
-        } catch (Throwable e) {
-            throw new RuntimeException("Could not initialize intrinsics", e);
+            return UNSAFE.objectFieldOffset(klazz.getDeclaredField(fieldName));
+        } catch (NoSuchFieldException e) {
+            // Convert Exception to Error
+            NoSuchFieldError error = new NoSuchFieldError(fieldName);
+            error.initCause(e);
+            throw error;
         }
     }
 
+    private static final sun.misc.Unsafe UNSAFE = getUnsafe();
+    static final long statusOffset =
+        fieldOffset("status", ForkJoinTask.class);
+
 }