These classes can be final

Author: joegallo

server/src/main/java/org/elasticsearch/ingest/IngestCtxMap.java

@@ -29,7 +29,7 @@
  *
  * The map is expected to be used by processors, server code should the typed getter and setters where possible.
  */
-class IngestCtxMap extends CtxMap<IngestDocMetadata> {
+final class IngestCtxMap extends CtxMap<IngestDocMetadata> {
 
  /**
  * Create an IngestCtxMap with the given metadata, source and default validators

server/src/main/java/org/elasticsearch/ingest/IngestDocMetadata.java

@@ -19,7 +19,7 @@
 import java.util.Map;
 import java.util.stream.Collectors;
 
-class IngestDocMetadata extends Metadata {
+final class IngestDocMetadata extends Metadata {
 
  static final Map<String, FieldProperty<?>> PROPERTIES = Map.of(
  INDEX,