Cleaned up EnversRevisionRepositoryImpl the code to enhance readability and maintainability.

Original pull request #3576

Author: arefbehboudi

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

@@ -81,8 +81,10 @@ public class EnversRevisionRepositoryImpl<T, ID, N extends Number & Comparable<N
 	 * @param entityManager must not be {@literal null}.
 	 */
 	public EnversRevisionRepositoryImpl(JpaEntityInformation<T, ?> entityInformation,
-			RevisionEntityInformation revisionEntityInformation, EntityManager entityManager) {
+										RevisionEntityInformation revisionEntityInformation, EntityManager entityManager) {
 
+		Assert.notNull(entityInformation, "JpaEntityInformation must not be null!");
+		Assert.notNull(entityManager, "EntityManager must not be null!");
 		Assert.notNull(revisionEntityInformation, "RevisionEntityInformation must not be null!");
 
 		this.entityInformation = entityInformation;
@@ -171,7 +173,7 @@ public Page<Revision<N, T>> findRevisions(ID id, Pageable pageable) {
 
 		AuditQuery baseQuery = createBaseQuery(id);
 
-		List<AuditOrder> orderMapped = (pageable.getSort()instanceof RevisionSort revisionSort)
+		List<AuditOrder> orderMapped = (pageable.getSort() instanceof RevisionSort revisionSort)
 				? List.of(mapRevisionSort(revisionSort))
 				: mapPropertySort(pageable.getSort());
 
@@ -190,7 +192,6 @@ public Page<Revision<N, T>> findRevisions(ID id, Pageable pageable) {
 		for (Object[] singleResult : resultList) {
 			revisions.add(createRevision(new QueryResult<>(singleResult)));
 		}
-
 		return new PageImpl<>(revisions, pageable, count);
 	}