diff --git a/src/share/classes/java/util/concurrent/atomic/AtomicLongArray.java b/src/share/classes/java/util/concurrent/atomic/AtomicLongArray.java
index bf7aa6ecca805cfd741d17682a914795395dbdfd..28174a586ff3cfd5fad74959830bf3c1d0c619f5 100644
--- a/src/share/classes/java/util/concurrent/atomic/AtomicLongArray.java
+++ b/src/share/classes/java/util/concurrent/atomic/AtomicLongArray.java
@@ -303,7 +303,7 @@ public class AtomicLongArray implements java.io.Serializable {
      * @return the previous value
      * @since 1.8
      */
-    public final long getAndAccumulate(int i, int x,
+    public final long getAndAccumulate(int i, long x,
                                       LongBinaryOperator accumulatorFunction) {
         long offset = checkedByteOffset(i);
         long prev, next;
@@ -329,7 +329,7 @@ public class AtomicLongArray implements java.io.Serializable {
      * @return the updated value
      * @since 1.8
      */
-    public final long accumulateAndGet(int i, int x,
+    public final long accumulateAndGet(int i, long x,
                                       LongBinaryOperator accumulatorFunction) {
         long offset = checkedByteOffset(i);
         long prev, next;