Minor polishing in ConcurrentReferenceHashMap

Closes gh-24494

spring-core/src/main/java/org/springframework/util/ConcurrentReferenceHashMap.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2019 the original author or authors.
+ * Copyright 2002-2020 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.
@@ -329,7 +329,7 @@ public class ConcurrentReferenceHashMap<K, V> extends AbstractMap<K, V> implemen
 				return false;
 			}
 		});
-		return (result == Boolean.TRUE);
+		return (Boolean.TRUE.equals(result));
 	}
 
 	@Override
@@ -344,7 +344,7 @@ public class ConcurrentReferenceHashMap<K, V> extends AbstractMap<K, V> implemen
 				return false;
 			}
 		});
-		return (result == Boolean.TRUE);
+		return (Boolean.TRUE.equals(result));
 	}
 
 	@Override