Fix test setup so that temporal conversions use symmetric timezone setting.

Closes: #4446
Original Pull Request: #4447

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/convert/MappingMongoConverterUnitTests.java

@@ -25,7 +25,6 @@ import java.math.BigInteger;
 import java.net.URL;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
-import java.time.ZoneOffset;
 import java.time.temporal.ChronoUnit;
 import java.util.*;
 
@@ -106,6 +105,7 @@ import com.mongodb.DBRef;
  * @author Mark Paluch
  * @author Roman Puchkovskiy
  * @author Heesu Jung
+ * @author Julia Lee
  */
 @ExtendWith(MockitoExtension.class)
 class MappingMongoConverterUnitTests {
@@ -2619,7 +2619,7 @@ class MappingMongoConverterUnitTests {
 	void projectShouldReadSimpleInterfaceProjection() {
 
 		org.bson.Document source = new org.bson.Document("birthDate",
-				Date.from(LocalDate.of(1999, 12, 1).atStartOfDay().toInstant(ZoneOffset.UTC))).append("foo", "Walter");
+				Date.from(LocalDate.of(1999, 12, 1).atStartOfDay(systemDefault()).toInstant())).append("foo", "Walter");
 
 		EntityProjectionIntrospector discoverer = EntityProjectionIntrospector.create(converter.getProjectionFactory(),
 				EntityProjectionIntrospector.ProjectionPredicate.typeHierarchy()
@@ -2637,7 +2637,7 @@ class MappingMongoConverterUnitTests {
 	void projectShouldReadSimpleDtoProjection() {
 
 		org.bson.Document source = new org.bson.Document("birthDate",
-				Date.from(LocalDate.of(1999, 12, 1).atStartOfDay().toInstant(ZoneOffset.UTC))).append("foo", "Walter");
+				Date.from(LocalDate.of(1999, 12, 1).atStartOfDay(systemDefault()).toInstant())).append("foo", "Walter");
 
 		EntityProjectionIntrospector introspector = EntityProjectionIntrospector.create(converter.getProjectionFactory(),
 				EntityProjectionIntrospector.ProjectionPredicate.typeHierarchy()

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/encryption/AbstractEncryptionTestBase.java

@@ -70,6 +70,7 @@ import com.mongodb.client.vault.ClientEncryptions;
 
 /**
  * @author Christoph Strobl
+ * @author Julia Lee
  */
 public abstract class AbstractEncryptionTestBase {
 
@@ -450,7 +451,8 @@ public abstract class AbstractEncryptionTestBase {
 		protected void configureConverters(MongoConverterConfigurationAdapter converterConfigurationAdapter) {
 
 			converterConfigurationAdapter
-					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext));
+					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext))
+					.useNativeDriverJavaTimeCodecs();
 		}
 
 		@Bean

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/encryption/BypassAutoEncryptionTest.java

@@ -45,6 +45,7 @@ import com.mongodb.client.vault.ClientEncryptions;
  * Encryption tests for client having {@link AutoEncryptionSettings#isBypassAutoEncryption()}.
  *
  * @author Christoph Strobl
+ * @author Julia Lee
  */
 @ExtendWith(SpringExtension.class)
 @ContextConfiguration(classes = Config.class)
@@ -78,7 +79,8 @@ public class BypassAutoEncryptionTest extends AbstractEncryptionTestBase {
 		protected void configureConverters(MongoConverterConfigurationAdapter converterConfigurationAdapter) {
 
 			converterConfigurationAdapter
-					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext));
+					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext))
+					.useNativeDriverJavaTimeCodecs();
 		}
 
 		@Bean

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/core/encryption/EncryptionTests.java

@@ -49,6 +49,7 @@ import com.mongodb.client.vault.ClientEncryptions;
 
 /**
  * @author Christoph Strobl
+ * @author Julia Lee
  */
 @ExtendWith(SpringExtension.class)
 @ContextConfiguration(classes = Config.class)
@@ -74,7 +75,8 @@ public class EncryptionTests extends AbstractEncryptionTestBase {
 		protected void configureConverters(MongoConverterConfigurationAdapter converterConfigurationAdapter) {
 
 			converterConfigurationAdapter
-					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext));
+					.registerPropertyValueConverterFactory(PropertyValueConverterFactory.beanFactoryAware(applicationContext))
+					.useNativeDriverJavaTimeCodecs();
 		}
 
 		@Bean