--- a/src/java.base/share/classes/java/math/BigInteger.java	Mon Oct 22 14:41:51 2018 -0700
+++ b/src/java.base/share/classes/java/math/BigInteger.java	Mon Oct 22 17:00:04 2018 -0700
@@ -4600,7 +4600,7 @@
         }
 
         static void putMag(BigInteger bi, int[] magnitude) {
-            unsafe.putObject(bi, magOffset, magnitude);
+            unsafe.putReference(bi, magOffset, magnitude);
         }
     }