--- jsr166/src/main/java/util/ArrayPrefixUtil.java	2012/12/27 21:28:01	1.3
+++ jsr166/src/main/java/util/ArrayPrefixUtil.java	2013/01/02 03:26:36	1.4
@@ -73,6 +73,7 @@ class ArrayPrefixUtil {
     static final int MIN_PARTITION = 16;
 
     static final class CumulateTask<T> extends CountedCompleter<Void> {
+        static final long serialVersionUID = 5293554502939613543L;
         final T[] array;
         final BinaryOperator<T> function;
         CumulateTask<T> left, right;
@@ -222,6 +223,7 @@ class ArrayPrefixUtil {
     }
 
     static final class LongCumulateTask extends CountedCompleter<Void> {
+        static final long serialVersionUID = -5074099945909284273L;
         final long[] array;
         final LongBinaryOperator function;
         LongCumulateTask left, right;
@@ -371,6 +373,7 @@ class ArrayPrefixUtil {
     }
 
     static final class DoubleCumulateTask extends CountedCompleter<Void> {
+        static final long serialVersionUID = -586947823794232033L;
         final double[] array;
         final DoubleBinaryOperator function;
         DoubleCumulateTask left, right;
@@ -520,6 +523,7 @@ class ArrayPrefixUtil {
     }
 
     static final class IntCumulateTask extends CountedCompleter<Void> {
+        static final long serialVersionUID = 3731755594596840961L;
         final int[] array;
         final IntBinaryOperator function;
         IntCumulateTask left, right;