Update server/src/main/java/org/elasticsearch/index/mapper/DynamicTem…

…plate.java Co-authored-by: Felix Barnsteiner <felixbarny@users.noreply.github.com>
axw · Dec 9, 2023 · e50dcf3 · e50dcf3
1 parent 7d2a5a4
commit e50dcf3
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/server/src/main/java/org/elasticsearch/index/mapper/DynamicTemplate.java b/server/src/main/java/org/elasticsearch/index/mapper/DynamicTemplate.java
@@ -315,9 +315,9 @@ static DynamicTemplate parse(String name, Map<String, Object> conf) throws Mappe
         // unmatch_mapping_type filters down the matched mapping types.
         if (unmatchMappingType != null) {
             final Set<XContentFieldType> unmatchSet = Set.of(parseMatchMappingType(unmatchMappingType));
-            Set<XContentFieldType> matchSet = new LinkedHashSet<XContentFieldType>(Arrays.asList(xContentFieldTypes));
-            matchSet.removeAll(unmatchSet);
-            xContentFieldTypes = matchSet.toArray(XContentFieldType[]::new);
+            xContentFieldTypes = Stream.of(xContentFieldTypes)
+                .filter(Predicate.not(unmatchSet::contains))
+                .toArray(XContentFieldType[]::new);
         }
 
         // If match_mapping_type is "*", filter down matched mapping types