modernize some typecasts in Initiators

hibernate-core/src/main/java/org/hibernate/engine/jdbc/batch/internal/BatchBuilderInitiator.java

@@ -44,8 +44,8 @@ public BatchBuilder initiateService(Map<String, Object> configurationValues, Ser
 			);
 		}
 
-		if ( builder instanceof BatchBuilder ) {
-			return (BatchBuilder) builder;
+		if ( builder instanceof BatchBuilder batchBuilder ) {
+			return batchBuilder;
 		}
 
 		final String builderClassName = builder.toString();

hibernate-core/src/main/java/org/hibernate/engine/jdbc/connections/internal/MultiTenantConnectionProviderInitiator.java

@@ -61,8 +61,8 @@ public MultiTenantConnectionProvider<?> initiateService(Map<String, Object> conf
 			return null;
 		}
 
-		if ( configValue instanceof MultiTenantConnectionProvider<?> ) {
-			return (MultiTenantConnectionProvider<?>) configValue;
+		if ( configValue instanceof MultiTenantConnectionProvider<?> multiTenantConnectionProvider ) {
+			return multiTenantConnectionProvider;
 		}
 		else {
 			final Class<MultiTenantConnectionProvider<?>> implClass;

hibernate-core/src/main/java/org/hibernate/engine/jdbc/mutation/internal/MutationExecutorServiceInitiator.java

@@ -41,8 +41,8 @@ public MutationExecutorService initiateService(Map<String, Object> configuration
 			return createStandardService( configurationValues, registry );
 		}
 
-		if ( custom instanceof MutationExecutorService ) {
-			return (MutationExecutorService) custom;
+		if ( custom instanceof MutationExecutorService mutationExecutorService ) {
+			return mutationExecutorService;
 		}
 
 		final Class<? extends MutationExecutorService> customImplClass;

hibernate-core/src/main/java/org/hibernate/event/internal/EntityCopyObserverFactoryInitiator.java

@@ -51,10 +51,10 @@ else if ( value.equals( EntityCopyAllowedLoggedObserver.SHORT_NAME )
 			//We load an "example instance" just to get its Class;
 			//this might look excessive, but it also happens to test eagerly (at boot) that we can actually construct these
 			//and that they are indeed of the right type.
-			EntityCopyObserver exampleInstance =
+			final EntityCopyObserver exampleInstance =
 					registry.requireService( StrategySelector.class )
 							.resolveStrategy( EntityCopyObserver.class, value );
-			Class<?> observerType = exampleInstance.getClass();
+			final Class<?> observerType = exampleInstance.getClass();
 			LOG.debugf( "Configured EntityCopyObserver is a custom implementation of type %s", observerType.getName() );
 			return new EntityObserversFactoryFromClass( observerType );
 		}
@@ -65,8 +65,8 @@ private Object getConfigurationValue(final Map<?,?> configurationValues) {
 		if ( value == null ) {
 			return EntityCopyNotAllowedObserver.SHORT_NAME; //default
 		}
-		else if ( value instanceof String ) {
-			return value.toString().trim();
+		else if ( value instanceof String string ) {
+			return string.trim();
 		}
 		else {
 			return value;

hibernate-core/src/main/java/org/hibernate/persister/internal/PersisterClassResolverInitiator.java

@@ -35,6 +35,7 @@ public PersisterClassResolver initiateService(Map<String, Object> configurationV
 			return (PersisterClassResolver) customImpl;
 		}
 
+		@SuppressWarnings("unchecked")
 		final Class<? extends PersisterClassResolver> customImplClass = customImpl instanceof Class
 				? (Class<? extends PersisterClassResolver>) customImpl
 				: locate( registry, customImpl.toString() );

hibernate-core/src/main/java/org/hibernate/persister/internal/PersisterFactoryInitiator.java

@@ -32,8 +32,8 @@ public PersisterFactory initiateService(Map<String, Object> configurationValues,
 			return new PersisterFactoryImpl();
 		}
 
-		if ( customImpl instanceof PersisterFactory ) {
-			return (PersisterFactory) customImpl;
+		if ( customImpl instanceof PersisterFactory persisterFactory ) {
+			return persisterFactory;
 		}
 
 		@SuppressWarnings("unchecked")

hibernate-core/src/main/java/org/hibernate/tool/schema/internal/script/SqlScriptExtractorInitiator.java

@@ -9,10 +9,11 @@
 import org.hibernate.HibernateException;
 import org.hibernate.boot.registry.StandardServiceInitiator;
 import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
-import org.hibernate.cfg.Environment;
 import org.hibernate.service.spi.ServiceRegistryImplementor;
 import org.hibernate.tool.schema.spi.SqlScriptCommandExtractor;
 
+import static org.hibernate.cfg.SchemaToolingSettings.HBM2DDL_IMPORT_FILES_SQL_EXTRACTOR;
+
 /**
  * @author Steve Ebersole
  */
@@ -26,14 +27,14 @@ public Class<SqlScriptCommandExtractor> getServiceInitiated() {
 
 	@Override
 	public SqlScriptCommandExtractor initiateService(Map<String, Object> configurationValues, ServiceRegistryImplementor registry) {
-		final Object explicitSettingValue = configurationValues.get( Environment.HBM2DDL_IMPORT_FILES_SQL_EXTRACTOR );
+		final Object explicitSettingValue = configurationValues.get( HBM2DDL_IMPORT_FILES_SQL_EXTRACTOR );
 
 		if ( explicitSettingValue == null ) {
 			return SingleLineSqlScriptExtractor.INSTANCE;
 		}
 
-		if ( explicitSettingValue instanceof SqlScriptCommandExtractor ) {
-			return (SqlScriptCommandExtractor) explicitSettingValue;
+		if ( explicitSettingValue instanceof SqlScriptCommandExtractor commandExtractor ) {
+			return commandExtractor;
 		}
 
 		final String explicitSettingName = explicitSettingValue.toString().trim();