--- jsr166/src/main/java/util/ArrayPrefixHelpers.java	2013/01/16 19:01:22	1.1
+++ jsr166/src/main/java/util/ArrayPrefixHelpers.java	2014/12/31 07:54:13	1.4
@@ -5,12 +5,13 @@
  */
 
 package java.util;
-import java.util.concurrent.ForkJoinPool;
+
 import java.util.concurrent.CountedCompleter;
+import java.util.concurrent.ForkJoinPool;
 import java.util.function.BinaryOperator;
+import java.util.function.DoubleBinaryOperator;
 import java.util.function.IntBinaryOperator;
 import java.util.function.LongBinaryOperator;
-import java.util.function.DoubleBinaryOperator;
 
 /**
  * ForkJoin tasks to perform Arrays.parallelPrefix operations.
@@ -19,7 +20,7 @@ import java.util.function.DoubleBinaryOp
  * @since 1.8
  */
 class ArrayPrefixHelpers {
-    private ArrayPrefixHelpers() {}; // non-instantiable
+    private ArrayPrefixHelpers() {} // non-instantiable
 
     /*
      * Parallel prefix (aka cumulate, scan) task classes
@@ -187,7 +188,9 @@ class ArrayPrefixHelpers {
                         sum = t.in;
                     t.out = sum;
                     for (CumulateTask<T> par;;) {             // propagate
-                        if ((par = (CumulateTask<T>)t.getCompleter()) == null) {
+                        @SuppressWarnings("unchecked") CumulateTask<T> partmp
+                            = (CumulateTask<T>)t.getCompleter();
+                        if ((par = partmp) == null) {
                             if ((state & FINISHED) != 0)      // enable join
                                 t.quietlyComplete();
                             break outer;