Use getter instead of field for keyMapper (#9831)

diff --git a/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java b/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
index 2855d21cbe847b5598e9873e6903c5fc6edf28ba..b41a5f3546f226aa288d141e034e2ab4279d0aa7 100644 (file)
--- a/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
+++ b/server/src/main/java/com/vaadin/data/provider/DataCommunicator.java
@@ -790,6 +790,6 @@ public class DataCommunicator<T> extends AbstractExtension {
         detachDataProviderListener();
         dropAllData();
         this.dataProvider = dataProvider;
-        keyMapper.setIdentifierGetter(dataProvider::getId);
+        getKeyMapper().setIdentifierGetter(dataProvider::getId);
     }
 }