Polish 'Add test for nullSafeValue with mapper transformation'

See gh-43441

spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jackson/JsonObjectDeserializerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 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.
@@ -19,6 +19,7 @@ package org.springframework.boot.jackson;
 import java.io.InputStream;
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.time.LocalDate;
 import java.util.function.Function;
 
 import com.fasterxml.jackson.core.JsonParser;
@@ -149,12 +150,8 @@ class JsonObjectDeserializerTests {
 	void nullSafeValueWithMapperShouldTransformValue() {
 		JsonNode node = mock(JsonNode.class);
 		given(node.textValue()).willReturn("2023-12-01");
-
-		java.time.LocalDate result = this.testDeserializer.testNullSafeValue(
-				node, String.class, java.time.LocalDate::parse
-		);
-
-		assertThat(result).isEqualTo(java.time.LocalDate.of(2023, 12, 1));
+		LocalDate result = this.testDeserializer.testNullSafeValue(node, String.class, LocalDate::parse);
+		assertThat(result).isEqualTo(LocalDate.of(2023, 12, 1));
 	}
 
 	@Test
@@ -206,7 +203,6 @@ class JsonObjectDeserializerTests {
 			return nullSafeValue(jsonNode, type, mapper);
 		}
 
-
 		<D> D testNullSafeValue(JsonNode jsonNode, Class<D> type) {
 			return nullSafeValue(jsonNode, type);
 		}