Minor nit

Author: mohityadav766

openmetadata-service/src/main/java/org/openmetadata/service/search/indexes/ContainerIndex.java

@@ -3,6 +3,7 @@
 import static org.openmetadata.service.search.EntityBuilderConstant.DATA_MODEL_COLUMNS_NAME_KEYWORD;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
@@ -39,7 +40,7 @@ public Set<String> getExcludedFields() {
   public Set<String> getRequiredReindexFields() {
     Set<String> fields = new HashSet<>(DataAssetIndex.super.getRequiredReindexFields());
     fields.add("dataModel");
-    return java.util.Collections.unmodifiableSet(fields);
+    return Collections.unmodifiableSet(fields);
   }
 
   public Map<String, Object> buildSearchIndexDocInternal(Map<String, Object> doc) {