GEODE-5983: Added missing null check (apache#2800)

b-xiang · Nov 7, 2018 · cae30b0 · cae30b0
1 parent 144758b
commit cae30b0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/geode-core/src/main/java/org/apache/geode/redis/internal/executor/list/ListExecutor.java b/geode-core/src/main/java/org/apache/geode/redis/internal/executor/list/ListExecutor.java
@@ -127,8 +127,8 @@ protected void pushElements(ByteArrayWrapper key, List<byte[]> commandElems, int
       boolean indexSet = false;
       do {
         Integer existingIndex = (Integer) keyRegion.get(indexKey);
-        if ((pushType == ListDirection.RIGHT && existingIndex < index)
-            || (pushType == ListDirection.LEFT && existingIndex > index))
+        if (index != null && ((pushType == ListDirection.RIGHT && existingIndex < index)
+            || (pushType == ListDirection.LEFT && existingIndex > index)))
           indexSet = keyRegion.replace(indexKey, existingIndex, index);
         else
           break;