--- old/src/hotspot/share/utilities/bitMap.cpp	2017-10-12 12:07:13.771718984 -0400
+++ new/src/hotspot/share/utilities/bitMap.cpp	2017-10-12 12:07:13.298297294 -0400
@@ -626,7 +626,7 @@
       table[i] = num_set_bits(i);
     }
 
-    if (!Atomic::cmpxchg_if_null(table, &_pop_count_table)) {
+    if (Atomic::cmpxchg(table, &_pop_count_table, (BitMap::idx_t*)NULL) != NULL) {
       guarantee(_pop_count_table != NULL, "invariant");
       FREE_C_HEAP_ARRAY(idx_t, table);
     }