Polishing.

See #3134

spring-data-envers/src/main/java/org/springframework/data/envers/repository/support/EnversRevisionRepositoryImpl.java

@@ -15,7 +15,15 @@
  */
 package org.springframework.data.envers.repository.support;
 
+import static org.springframework.data.history.RevisionMetadata.RevisionType.*;
+
 import jakarta.persistence.EntityManager;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
 import org.hibernate.Hibernate;
 import org.hibernate.envers.AuditReader;
 import org.hibernate.envers.AuditReaderFactory;
@@ -43,13 +51,6 @@ import org.springframework.data.repository.history.support.RevisionEntityInforma
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.Assert;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Optional;
-
-import static org.springframework.data.history.RevisionMetadata.RevisionType.*;
-
 /**
  * Repository implementation using Hibernate Envers to implement revision specific query methods.
  *
@@ -61,6 +62,8 @@ import static org.springframework.data.history.RevisionMetadata.RevisionType.*;
  * @author Mark Paluch
  * @author Sander Bylemans
  * @author Niklas Loechte
+ * @author Donghun Shin
+ * @author Greg Turnquist
  */
 @Transactional(readOnly = true)
 public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N>>
@@ -73,12 +76,12 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 	 * Creates a new {@link EnversRevisionRepositoryImpl} using the given {@link JpaEntityInformation},
 	 * {@link RevisionEntityInformation} and {@link EntityManager}.
 	 *
-	 * @param entityInformation         must not be {@literal null}.
+	 * @param entityInformation must not be {@literal null}.
 	 * @param revisionEntityInformation must not be {@literal null}.
-	 * @param entityManager             must not be {@literal null}.
+	 * @param entityManager must not be {@literal null}.
 	 */
 	public EnversRevisionRepositoryImpl(JpaEntityInformation<T, ?> entityInformation,
-										RevisionEntityInformation revisionEntityInformation, EntityManager entityManager) {
+			RevisionEntityInformation revisionEntityInformation, EntityManager entityManager) {
 
 		Assert.notNull(revisionEntityInformation, "RevisionEntityInformation must not be null!");
 
@@ -136,7 +139,6 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 		return Revisions.of(revisionList);
 	}
 
-
 	private AuditOrder mapRevisionSort(RevisionSort revisionSort) {
 
 		return RevisionSort.getRevisionDirection(revisionSort).isDescending() //
@@ -154,9 +156,9 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 		for (Sort.Order order : sort) {
 
 			AuditProperty<Object> property = AuditEntity.property(order.getProperty());
-			AuditOrder auditOrder = order.getDirection().isAscending() ?
+			AuditOrder auditOrder = order.getDirection().isAscending() //
-					property.asc() :
+					? property.asc() //
-					property.desc();
+					: property.desc();
 
 			result.add(auditOrder);
 		}
@@ -169,9 +171,9 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 
 		AuditQuery baseQuery = createBaseQuery(id);
 
-		List<AuditOrder> orderMapped = (pageable.getSort() instanceof RevisionSort revisionSort) ?
+		List<AuditOrder> orderMapped = (pageable.getSort()instanceof RevisionSort revisionSort)
-				Collections.singletonList(mapRevisionSort(revisionSort)) :
+				? List.of(mapRevisionSort(revisionSort))
-				mapPropertySort(pageable.getSort());
+				: mapPropertySort(pageable.getSort());
 
 		orderMapped.forEach(baseQuery::addOrder);
 
@@ -235,17 +237,17 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 			return metadata instanceof DefaultRevisionEntity defaultRevisionEntity //
 					? new DefaultRevisionMetadata(defaultRevisionEntity, revisionType) //
 					: new AnnotationRevisionMetadata<>(Hibernate.unproxy(metadata), RevisionNumber.class, RevisionTimestamp.class,
-					revisionType);
+							revisionType);
 		}
 
 		private static RevisionMetadata.RevisionType convertRevisionType(RevisionType datum) {
 
-            return switch (datum) {
+			return switch (datum) {
-                case ADD -> INSERT;
+				case ADD -> INSERT;
-                case MOD -> UPDATE;
+				case MOD -> UPDATE;
-                case DEL -> DELETE;
+				case DEL -> DELETE;
-                default -> UNKNOWN;
+				default -> UNKNOWN;
-            };
+			};
 		}
 	}
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/provider/HibernateUtils.java

@@ -26,6 +26,8 @@ import org.springframework.lang.Nullable;
  * @author Oliver Gierke
  * @author Mark Paluch
  * @author Jens Schauder
+ * @author Donghun Shin
+ * @author Greg Turnquist
  * @since 1.10.2
  * @soundtrack Benny Greb - Soulfood (Live, https://www.youtube.com/watch?v=9_ErMa_CtSw)
  */
@@ -54,8 +56,8 @@ public abstract class HibernateUtils {
 
 		// Try the old way, as it still works in some cases (haven't investigated in which exactly)
 
-		if (query instanceof Query) {
+		if (query instanceof Query<?> hibernateQuery) {
-			return ((Query<?>) query).getQueryString();
+			return hibernateQuery.getQueryString();
 		} else {
 			throw new IllegalArgumentException("Don't know how to extract the query string from " + query);
 		}

spring-data-jpa/src/main/java/org/springframework/data/jpa/provider/JpaClassUtils.java

@@ -28,6 +28,8 @@ import org.springframework.util.ClassUtils;
  * @author Oliver Gierke
  * @author Christoph Strobl
  * @author Jens Schauder
+ * @author Donghun Shin
+ * @author Greg Turnquist
  */
 abstract class JpaClassUtils {
 
@@ -45,12 +47,9 @@ abstract class JpaClassUtils {
 	 */
 	public static boolean isEntityManagerOfType(EntityManager em, String type) {
 
-		EntityManager entityManagerToUse = em;
+		EntityManager entityManagerToUse = em.getDelegate()instanceof EntityManager delegate //
-		Object delegate = em.getDelegate();
+				? delegate //
-
+				: em;
-		if (delegate instanceof EntityManager delegateEntityManager) {
-			entityManagerToUse = delegateEntityManager;
-		}
 
 		return isOfType(entityManagerToUse, type, entityManagerToUse.getClass().getClassLoader());
 	}

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/cdi/JpaRepositoryExtension.java

@@ -15,6 +15,14 @@
  */
 package org.springframework.data.jpa.repository.cdi;
 
+import jakarta.enterprise.event.Observes;
+import jakarta.enterprise.inject.UnsatisfiedResolutionException;
+import jakarta.enterprise.inject.spi.AfterBeanDiscovery;
+import jakarta.enterprise.inject.spi.Bean;
+import jakarta.enterprise.inject.spi.BeanManager;
+import jakarta.enterprise.inject.spi.ProcessBean;
+import jakarta.persistence.EntityManager;
+
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Type;
 import java.util.HashMap;
@@ -24,14 +32,6 @@ import java.util.Map.Entry;
 import java.util.Optional;
 import java.util.Set;
 
-import jakarta.enterprise.event.Observes;
-import jakarta.enterprise.inject.UnsatisfiedResolutionException;
-import jakarta.enterprise.inject.spi.AfterBeanDiscovery;
-import jakarta.enterprise.inject.spi.Bean;
-import jakarta.enterprise.inject.spi.BeanManager;
-import jakarta.enterprise.inject.spi.ProcessBean;
-import jakarta.persistence.EntityManager;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.springframework.data.repository.cdi.CdiRepositoryBean;
@@ -44,6 +44,7 @@ import org.springframework.data.repository.cdi.CdiRepositoryExtensionSupport;
  * @author Oliver Gierke
  * @author Mark Paluch
  * @author Christoph Strobl
+ * @author Donghun Shin
  */
 public class JpaRepositoryExtension extends CdiRepositoryExtensionSupport {
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/JpaQueryTransformerSupport.java

@@ -18,6 +18,7 @@ import org.springframework.util.ObjectUtils;
  * Transformational operations needed to support either {@link HqlQueryTransformer} or {@link JpqlQueryTransformer}.
  * 
  * @author Greg Turnquist
+ * @author Donghun Shin
  * @since 3.1
  */
 class JpaQueryTransformerSupport {

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/Meta.java

@@ -27,6 +27,7 @@ import org.springframework.util.StringUtils;
  * Value object to hold metadata about repository methods.
  *
  * @author Greg Turnquist
+ * @author Donghun Shin
  * @since 3.0
  * @see org.springframework.data.jpa.repository.Meta
  */

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/ParameterMetadataProvider.java

@@ -18,7 +18,12 @@ package org.springframework.data.jpa.repository.query;
 import jakarta.persistence.criteria.CriteriaBuilder;
 import jakarta.persistence.criteria.ParameterExpression;
 
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
 import java.util.function.Supplier;
 import java.util.stream.Collectors;
 
@@ -46,6 +51,8 @@ import org.springframework.util.ObjectUtils;
  * @author Jens Schauder
  * @author Andrey Kovalev
  * @author Yuriy Tsarkov
+ * @author Donghun Shin
+ * @author Greg Turnquist
  */
 class ParameterMetadataProvider {
 
@@ -275,7 +282,6 @@ class ParameterMetadataProvider {
 			}
 
 			if (value instanceof Collection<?> collection) {
-
 				return collection.isEmpty() ? null : collection;
 			}
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/QueryUtils.java

@@ -80,6 +80,7 @@ import org.springframework.util.StringUtils;
  * @author Simon Paradies
  * @author Vladislav Yukharin
  * @author Chris Fraser
+ * @author Donghun Shin
  */
 public abstract class QueryUtils {
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/support/EntityManagerBeanDefinitionRegistrarPostProcessor.java

@@ -43,6 +43,7 @@ import org.springframework.orm.jpa.SharedEntityManagerCreator;
  * @author Oliver Gierke
  * @author Réda Housni Alaoui
  * @author Mark Paluch
+ * @author Donghun Shin
  */
 public class EntityManagerBeanDefinitionRegistrarPostProcessor implements BeanFactoryPostProcessor, Ordered {
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/support/Querydsl.java

@@ -48,6 +48,7 @@ import com.querydsl.jpa.impl.JPAQuery;
  * @author Mark Paluch
  * @author Christoph Strobl
  * @author Marcus Voltolim
+ * @author Donghun Shin
  */
 public class Querydsl {
 

spring-data-jpa/src/main/java/org/springframework/data/jpa/util/BeanDefinitionUtils.java

@@ -18,6 +18,8 @@ package org.springframework.data.jpa.util;
 import static java.util.Arrays.*;
 import static org.springframework.beans.factory.BeanFactoryUtils.*;
 
+import jakarta.persistence.EntityManagerFactory;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
@@ -25,8 +27,6 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
-import jakarta.persistence.EntityManagerFactory;
-
 import org.springframework.beans.factory.BeanFactory;
 import org.springframework.beans.factory.ListableBeanFactory;
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
@@ -43,6 +43,7 @@ import org.springframework.util.ObjectUtils;
  *
  * @author Oliver Gierke
  * @author Mark Paluch
+ * @author Donghun Shin
  */
 public final class BeanDefinitionUtils {