Polishing.

Remove serialVersionUID for types that aren't serializable.

See #3584

Author: mp911de

spring-data-jpa/src/main/java/org/springframework/data/jpa/domain/AbstractAuditable.java

@@ -15,17 +15,17 @@
  */
 package org.springframework.data.jpa.domain;
 
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.MappedSuperclass;
+import jakarta.persistence.Temporal;
+import jakarta.persistence.TemporalType;
+
 import java.io.Serializable;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
 import java.util.Date;
 import java.util.Optional;
 
-import jakarta.persistence.ManyToOne;
-import jakarta.persistence.MappedSuperclass;
-import jakarta.persistence.Temporal;
-import jakarta.persistence.TemporalType;
-
 import org.springframework.data.domain.Auditable;
 import org.springframework.lang.Nullable;
 
@@ -42,8 +42,6 @@
 public abstract class AbstractAuditable<U, PK extends Serializable> extends AbstractPersistable<PK>
 		implements Auditable<U, PK, LocalDateTime> {
 
-	private static final long serialVersionUID = 141481953116476081L;
-
 	@ManyToOne //
 	private @Nullable U createdBy;
 

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/Account.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.jpa.domain.sample;
 
-import java.io.Serial;
-
 import jakarta.persistence.Entity;
 
 import org.springframework.data.jpa.domain.AbstractPersistable;
@@ -27,5 +25,4 @@
 @Entity
 public class Account extends AbstractPersistable<Long> {
 
-	private static final long serialVersionUID = -5719129808165758887L;
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/AuditableRole.java

@@ -27,8 +27,6 @@
 @Entity
 public class AuditableRole extends AbstractAuditable<AuditableUser, Long> {
 
-	private static final long serialVersionUID = 5997359055260303863L;
-
 	private String name;
 
 	public void setName(String name) {

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/AuditableUser.java

@@ -15,14 +15,14 @@
  */
 package org.springframework.data.jpa.domain.sample;
 
-import java.util.HashSet;
-import java.util.Set;
-
 import jakarta.persistence.CascadeType;
 import jakarta.persistence.Entity;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.NamedQuery;
 
+import java.util.HashSet;
+import java.util.Set;
+
 import org.springframework.data.jpa.domain.AbstractAuditable;
 import org.springframework.lang.Nullable;
 
@@ -37,8 +37,6 @@
 @NamedQuery(name = "AuditableUser.findByFirstname", query = "SELECT u FROM AuditableUser u WHERE u.firstname = ?1")
 public class AuditableUser extends AbstractAuditable<AuditableUser, Integer> {
 
-	private static final long serialVersionUID = 7409344446795693011L;
-
 	private String firstname;
 
 	@ManyToMany(

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/CustomAbstractPersistable.java

@@ -27,5 +27,4 @@
 @Table(name = "customAbstractPersistable")
 public class CustomAbstractPersistable extends AbstractPersistable<Long> {
 
-	private static final long serialVersionUID = 1L;
 }

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/Parent.java

@@ -15,24 +15,22 @@
  */
 package org.springframework.data.jpa.domain.sample;
 
-import java.util.HashSet;
-import java.util.Set;
-
 import jakarta.persistence.CascadeType;
 import jakarta.persistence.Entity;
 import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 
+import java.util.HashSet;
+import java.util.Set;
+
 @Entity
 public class Parent {
 
 	@Id
 	@GeneratedValue
 	Long id;
 
-	static final long serialVersionUID = -89717120680485957L;
-
 	@ManyToMany(cascade = CascadeType.ALL)
 	Set<Child> children = new HashSet<>();
 

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/PersistableWithIdClass.java

@@ -30,8 +30,6 @@
 @IdClass(PersistableWithIdClassPK.class)
 public class PersistableWithIdClass implements Persistable<PersistableWithIdClassPK> {
 
-	private static final long serialVersionUID = 1L;
-
 	@Id
 	private
 	Long first;

spring-data-jpa/src/test/java/org/springframework/data/jpa/domain/sample/PersistableWithSingleIdClass.java

@@ -28,8 +28,6 @@
 @IdClass(PersistableWithSingleIdClassPK.class)
 public class PersistableWithSingleIdClass {
 
-	private static final long serialVersionUID = 1L;
-
 	@Id private Long first;
 
 	protected PersistableWithSingleIdClass() {