Compile fix

elastic · Apr 7, 2021 · a83ff28 · a83ff28
1 parent 08a188d
commit a83ff28
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/XPackPlugin.java b/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/XPackPlugin.java
@@ -246,12 +246,11 @@ private static boolean alreadyContainsXPackCustomMetadata(ClusterState clusterSt
             metadata.custom(WatcherMetadata.TYPE) != null ||
             clusterState.custom(TokenMetadata.TYPE) != null;
     }
-    
+
     @Override
     public Map<String, MetadataFieldMapper.TypeParser> getMetadataMappers() {
-        return Map.of(DataTierFieldMapper.NAME, DataTierFieldMapper.PARSER);
+        return Collections.singletonMap(DataTierFieldMapper.NAME, DataTierFieldMapper.PARSER);
     }
-
 
     @Override
     public Settings additionalSettings() {