Switch to Standard UUID representation.

Closes: #3932
Original pull request: #5034

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/config/MongoConfigurationSupport.java

@@ -226,7 +226,7 @@ public abstract class MongoConfigurationSupport {
 	protected MongoClientSettings mongoClientSettings() {
 
 		MongoClientSettings.Builder builder = MongoClientSettings.builder();
-		builder.uuidRepresentation(UuidRepresentation.JAVA_LEGACY);
+		builder.uuidRepresentation(UuidRepresentation.STANDARD);
 		configureClientSettings(builder);
 		return builder.build();
 	}

spring-data-mongodb/src/main/java/org/springframework/data/mongodb/core/MongoClientFactoryBean.java

@@ -162,7 +162,7 @@ public class MongoClientFactoryBean extends AbstractFactoryBean<MongoClient> imp
 						getOrDefault(port, "" + ServerAddress.defaultPort())));
 
 		Builder builder = MongoClientSettings.builder().applyConnectionString(connectionString);
-		builder.uuidRepresentation(UuidRepresentation.JAVA_LEGACY);
+		builder.uuidRepresentation(UuidRepresentation.STANDARD);
 
 		if (mongoClientSettings != null) {
 
@@ -291,7 +291,7 @@ public class MongoClientFactoryBean extends AbstractFactoryBean<MongoClient> imp
 			applySettings(builder::retryWrites, computeSettingsValue(defaultSettings.getRetryWrites(),
 					mongoClientSettings.getRetryWrites(), connectionString.getRetryWritesValue()));
 			applySettings(builder::uuidRepresentation,
-					computeSettingsValue(null, mongoClientSettings.getUuidRepresentation(), UuidRepresentation.JAVA_LEGACY));
+					computeSettingsValue(null, mongoClientSettings.getUuidRepresentation(), UuidRepresentation.STANDARD));
 		}
 
 		if (!CollectionUtils.isEmpty(credential)) {

spring-data-mongodb/src/test/java/org/springframework/data/mongodb/test/util/MongoTestUtils.java

@@ -54,9 +54,9 @@ public class MongoTestUtils {
 	private static final Environment ENV = new StandardEnvironment();
 	private static final Duration DEFAULT_TIMEOUT = Duration.ofMillis(10);
 
-	public static final String CONNECTION_STRING = "mongodb://127.0.0.1:27017/?replicaSet=rs0&w=majority&uuidrepresentation=javaLegacy";
+	public static final String CONNECTION_STRING = "mongodb://127.0.0.1:27017/?replicaSet=rs0&w=majority&uuidrepresentation=standard";
 
-	private static final String CONNECTION_STRING_PATTERN = "mongodb://%s:%s/?w=majority&uuidrepresentation=javaLegacy";
+	private static final String CONNECTION_STRING_PATTERN = "mongodb://%s:%s/?w=majority&uuidrepresentation=standard";
 
 	private static final Version ANY = new Version(9999, 9999, 9999);
 

src/main/antora/modules/ROOT/pages/mongodb/mapping/mapping.adoc

@@ -119,9 +119,9 @@ See xref:mongodb/mapping/custom-conversions.adoc[Custom Conversions - Overriding
 | native
 | `{"bin" : { "$binary" : "AQIDBA==", "$type" : "00" }}`
 
-| `java.util.UUID` (Legacy UUID)
+| `java.util.UUID` (Standard UUID)
 | native
-| `{"uuid" : { "$binary" : "MEaf1CFQ6lSphaa3b9AtlA==", "$type" : "03" }}`
+| `{"uuid" : { "$binary" : "MEaf1CFQ6lSphaa3b9AtlA==", "$type" : "04" }}`
 
 | `Date`
 | native