HDFS-14799. Do Not Call Map containsKey In Conjunction with get. Cont…

…ributed by hemanthboyina.
apache · Sep 14, 2019 · e04b8a4 · e04b8a4
1 parent 9a931b8
commit e04b8a4
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/...op-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/InvalidateBlocks.java b/...op-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/InvalidateBlocks.java
@@ -112,17 +112,11 @@ long getECBlocks() {
   }
 
   private LightWeightHashSet<Block> getBlocksSet(final DatanodeInfo dn) {
-    if (nodeToBlocks.containsKey(dn)) {
-      return nodeToBlocks.get(dn);
-    }
-    return null;
+    return nodeToBlocks.get(dn);
   }
 
   private LightWeightHashSet<Block> getECBlocksSet(final DatanodeInfo dn) {
-    if (nodeToECBlocks.containsKey(dn)) {
-      return nodeToECBlocks.get(dn);
-    }
-    return null;
+    return nodeToECBlocks.get(dn);
   }
 
   private LightWeightHashSet<Block> getBlocksSet(final DatanodeInfo dn,