diff --git a/spring-context/src/main/java/org/springframework/context/expression/MapAccessor.java b/spring-context/src/main/java/org/springframework/context/expression/MapAccessor.java
index 5acc804d2a..e7374fe305 100644
--- a/spring-context/src/main/java/org/springframework/context/expression/MapAccessor.java
+++ b/spring-context/src/main/java/org/springframework/context/expression/MapAccessor.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2017 the original author or authors.
+ * Copyright 2002-2021 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -44,7 +44,7 @@ public class MapAccessor implements CompilablePropertyAccessor {
 
 	@Override
 	public boolean canRead(EvaluationContext context, @Nullable Object target, String name) throws AccessException {
-		return (target instanceof Map && ((Map<?, ?>) target).containsKey(name));
+		return (target instanceof Map<?, ?> map && map.containsKey(name));
 	}
 
 	@Override