Bael 7452 fixes (#15729)

* BAEL-7452: Renamed service getter

* BAEL-7452: Delombok and cleanup

persistence-modules/spring-boot-persistence-4/pom.xml

@@ -57,11 +57,6 @@
             <artifactId>jackson-databind</artifactId>
             <version>${jackson.version}</version>
         </dependency>
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>${lombok.version}</version>
-        </dependency>
     </dependencies>
 
     <build>
@@ -81,7 +76,6 @@
         <db.util.version>1.0.7</db.util.version>
         <hypersistence-utils.version>3.7.0</hypersistence-utils.version>
         <jackson.version>2.16.0</jackson.version>
-        <lombok.version>1.18.28</lombok.version>
     </properties>
 
 </project>

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/Service.java

@@ -50,7 +50,7 @@ public class Service<S> extends ParametrizationAware<S> {
     public int getUserByIdWithFunction(Long id, ToIntFunction<S> function) {
 
         Optional<S> optionalUser = repository.findById(id);
-        if(optionalUser.isPresent()) {
+        if (optionalUser.isPresent()) {
             return function.applyAsInt(optionalUser.get());
         } else {
             return 0;

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/fulldomain/Comment.java

@@ -4,9 +4,8 @@ import com.fasterxml.jackson.annotation.JsonBackReference;
 import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity
 public class Comment {
 
@@ -22,4 +21,63 @@ public class Comment {
     @ManyToOne
     private Post post;
 
+    public Comment() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getText() {
+        return this.text;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public Post getPost() {
+        return this.post;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    public void setPost(Post post) {
+        this.post = post;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Comment comment = (Comment) o;
+
+        return Objects.equals(id, comment.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Comment(id=" + this.getId() + ", text=" + this.getText() + ", author=" + this.getAuthor() + ", post=" + this.getPost()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/fulldomain/Group.java

@@ -6,9 +6,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -20,4 +19,54 @@ public class Group {
 
     @ManyToMany(fetch = FetchType.EAGER)
     private List<User> members;
+
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public List<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(List<User> members) {
+        this.members = members;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Group group = (Group) o;
+
+        return Objects.equals(id, group.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/fulldomain/Post.java

@@ -10,10 +10,9 @@ import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToMany;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -29,4 +28,63 @@ public class Post {
     @JsonBackReference
     @ManyToOne
     private User author;
+
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public List<Comment> getComments() {
+        return this.comments;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setComments(List<Comment> comments) {
+        this.comments = comments;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Post post = (Post) o;
+
+        return Objects.equals(id, post.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", comments=" + this.getComments() + ", author="
+               + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/fulldomain/Profile.java

@@ -6,10 +6,9 @@ import jakarta.persistence.Id;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.Lob;
 import jakarta.persistence.OneToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Profile {
 
     @Id
@@ -24,5 +23,72 @@ public class Profile {
     @OneToOne(mappedBy = "profile")
     @JoinColumn(unique = true)
     private User user;
+
+    public Profile() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getBiography() {
+        return this.biography;
+    }
+
+    public String getWebsite() {
+        return this.website;
+    }
+
+    public String getProfilePictureUrl() {
+        return this.profilePictureUrl;
+    }
+
+    public User getUser() {
+        return this.user;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setBiography(String biography) {
+        this.biography = biography;
+    }
+
+    public void setWebsite(String website) {
+        this.website = website;
+    }
+
+    public void setProfilePictureUrl(String profilePictureUrl) {
+        this.profilePictureUrl = profilePictureUrl;
+    }
+
+    public void setUser(User user) {
+        this.user = user;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Profile profile = (Profile) o;
+
+        return Objects.equals(id, profile.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Profile(id=" + this.getId() + ", biography=" + this.getBiography() + ", website=" + this.getWebsite()
+               + ", profilePictureUrl=" + this.getProfilePictureUrl() + ", user=" + this.getUser() + ")";
+    }
 }
 

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/fulldomain/User.java

@@ -10,9 +10,8 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.OneToOne;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -33,4 +32,79 @@ public class User {
 
     @ManyToMany(mappedBy = "members", fetch = FetchType.EAGER)
     private List<Group> groups;
+
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public Profile getProfile() {
+        return this.profile;
+    }
+
+    public List<Post> getPosts() {
+        return this.posts;
+    }
+
+    public List<Group> getGroups() {
+        return this.groups;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setProfile(Profile profile) {
+        this.profile = profile;
+    }
+
+    public void setPosts(List<Post> posts) {
+        this.posts = posts;
+    }
+
+    public void setGroups(List<Group> groups) {
+        this.groups = groups;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        User user = (User) o;
+
+        return Objects.equals(id, user.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", profile="
+               + this.getProfile() + ", posts=" + this.getPosts() + ", groups=" + this.getGroups() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/moderatedomain/Group.java

@@ -6,9 +6,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -20,4 +19,54 @@ public class Group {
 
     @ManyToMany(fetch = FetchType.EAGER)
     private List<User> members;
+
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public List<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(List<User> members) {
+        this.members = members;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Group group = (Group) o;
+
+        return Objects.equals(id, group.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/moderatedomain/Post.java

@@ -5,10 +5,9 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -20,4 +19,55 @@ public class Post {
     @JsonBackReference
     @ManyToOne
     private User author;
+
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Post post = (Post) o;
+
+        return Objects.equals(id, post.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/moderatedomain/User.java

@@ -9,9 +9,7 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.List;
 import java.util.Objects;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -25,6 +23,41 @@ public class User {
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author", fetch = FetchType.EAGER)
     protected List<Post> posts;
 
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public List<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(List<Post> posts) {
+        this.posts = posts;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -43,4 +76,9 @@ public class User {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/simpledomain/Post.java

@@ -5,10 +5,9 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -20,4 +19,54 @@ public class Post {
     @JsonBackReference
     @ManyToOne
     private User author;
+
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Post post = (Post) o;
+
+        return Objects.equals(id, post.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/list/simpledomain/User.java

@@ -8,9 +8,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -23,4 +22,63 @@ public class User {
     @JsonManagedReference
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author", fetch = FetchType.EAGER)
     protected List<Post> posts;
+
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public List<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(List<Post> posts) {
+        this.posts = posts;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        User user = (User) o;
+
+        return Objects.equals(id, user.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/fulldomain/Comment.java

@@ -5,9 +5,7 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToOne;
 import java.util.Objects;
-import lombok.Data;
 
-@Data
 @Entity
 public class Comment {
 
@@ -23,6 +21,41 @@ public class Comment {
     @ManyToOne
     private Post post;
 
+    public Comment() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getText() {
+        return this.text;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public Post getPost() {
+        return this.post;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setText(String text) {
+        this.text = text;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    public void setPost(Post post) {
+        this.post = post;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -41,4 +74,9 @@ public class Comment {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Comment(id=" + this.getId() + ", text=" + this.getText() + ", author=" + this.getAuthor() + ", post=" + this.getPost()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/fulldomain/Group.java

@@ -7,9 +7,7 @@ import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
 import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -22,6 +20,33 @@ public class Group {
     @ManyToMany(fetch = FetchType.EAGER)
     private Set<User> members;
 
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Set<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(Set<User> members) {
+        this.members = members;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -40,4 +65,8 @@ public class Group {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/fulldomain/Post.java

@@ -11,10 +11,8 @@ import jakarta.persistence.ManyToOne;
 import jakarta.persistence.OneToMany;
 import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -31,6 +29,41 @@ public class Post {
     @ManyToOne
     private User author;
 
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public Set<Comment> getComments() {
+        return this.comments;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setComments(Set<Comment> comments) {
+        this.comments = comments;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -49,4 +82,9 @@ public class Post {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", comments=" + this.getComments() + ", author="
+               + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/fulldomain/Profile.java

@@ -6,10 +6,9 @@ import jakarta.persistence.Id;
 import jakarta.persistence.JoinColumn;
 import jakarta.persistence.Lob;
 import jakarta.persistence.OneToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Profile {
 
     @Id
@@ -24,5 +23,72 @@ public class Profile {
     @OneToOne(mappedBy = "profile")
     @JoinColumn(unique = true)
     private User user;
+
+    public Profile() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getBiography() {
+        return this.biography;
+    }
+
+    public String getWebsite() {
+        return this.website;
+    }
+
+    public String getProfilePictureUrl() {
+        return this.profilePictureUrl;
+    }
+
+    public User getUser() {
+        return this.user;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setBiography(String biography) {
+        this.biography = biography;
+    }
+
+    public void setWebsite(String website) {
+        this.website = website;
+    }
+
+    public void setProfilePictureUrl(String profilePictureUrl) {
+        this.profilePictureUrl = profilePictureUrl;
+    }
+
+    public void setUser(User user) {
+        this.user = user;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Profile profile = (Profile) o;
+
+        return Objects.equals(id, profile.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Profile(id=" + this.getId() + ", biography=" + this.getBiography() + ", website=" + this.getWebsite()
+               + ", profilePictureUrl=" + this.getProfilePictureUrl() + ", user=" + this.getUser() + ")";
+    }
 }
 

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/fulldomain/User.java

@@ -11,9 +11,7 @@ import jakarta.persistence.OneToOne;
 import jakarta.persistence.Table;
 import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -35,6 +33,57 @@ public class User {
     @ManyToMany(mappedBy = "members", fetch = FetchType.EAGER)
     private Set<Group> groups;
 
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public Profile getProfile() {
+        return this.profile;
+    }
+
+    public Set<Post> getPosts() {
+        return this.posts;
+    }
+
+    public Set<Group> getGroups() {
+        return this.groups;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setProfile(Profile profile) {
+        this.profile = profile;
+    }
+
+    public void setPosts(Set<Post> posts) {
+        this.posts = posts;
+    }
+
+    public void setGroups(Set<Group> groups) {
+        this.groups = groups;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -53,4 +102,9 @@ public class User {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", profile="
+               + this.getProfile() + ", posts=" + this.getPosts() + ", groups=" + this.getGroups() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/lazy/moderatedomain/Group.java

@@ -4,10 +4,9 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
+import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -19,4 +18,54 @@ public class Group {
 
     @ManyToMany
     private Set<User> members;
+
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Set<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(Set<User> members) {
+        this.members = members;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Group group = (Group) o;
+
+        return Objects.equals(id, group.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/lazy/moderatedomain/Post.java

@@ -6,10 +6,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
 import java.util.Objects;
-import lombok.Data;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -22,6 +20,33 @@ public class Post {
     @ManyToOne
     private User author;
 
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -40,4 +65,8 @@ public class Post {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/lazy/moderatedomain/User.java

@@ -8,9 +8,7 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -24,6 +22,41 @@ public class User {
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author")
     protected Set<Post> posts;
 
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public Set<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(Set<Post> posts) {
+        this.posts = posts;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -42,4 +75,9 @@ public class User {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/moderatedomain/Group.java

@@ -5,10 +5,9 @@ import jakarta.persistence.FetchType;
 import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
+import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -20,4 +19,54 @@ public class Group {
 
     @ManyToMany(fetch = FetchType.EAGER)
     private Set<User> members;
+
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public Set<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(Set<User> members) {
+        this.members = members;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Group group = (Group) o;
+
+        return Objects.equals(id, group.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/moderatedomain/Post.java

@@ -6,10 +6,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
 import java.util.Objects;
-import lombok.Data;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -22,6 +20,33 @@ public class Post {
     @ManyToOne
     private User author;
 
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -40,4 +65,8 @@ public class Post {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/moderatedomain/User.java

@@ -9,9 +9,7 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -25,6 +23,41 @@ public class User {
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author", fetch = FetchType.EAGER)
     protected Set<Post> posts;
 
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public Set<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(Set<Post> posts) {
+        this.posts = posts;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -43,4 +76,9 @@ public class User {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/simpledomain/Post.java

@@ -6,10 +6,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
 import java.util.Objects;
-import lombok.Data;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -22,6 +20,33 @@ public class Post {
     @ManyToOne
     private User author;
 
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -40,4 +65,8 @@ public class Post {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/eager/set/simpledomain/User.java

@@ -7,10 +7,9 @@ import jakarta.persistence.FetchType;
 import jakarta.persistence.Id;
 import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
+import java.util.Objects;
 import java.util.Set;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -24,4 +23,63 @@ public class User {
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author", fetch = FetchType.EAGER)
     protected Set<Post> posts;
 
+    public User() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public Set<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(Set<Post> posts) {
+        this.posts = posts;
+    }
+
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        User user = (User) o;
+
+        return Objects.equals(id, user.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/lazy/list/moderatedomain/Group.java

@@ -5,9 +5,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.ManyToMany;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "interest_group")
 @Table(name = "interest_group")
 public class Group {
@@ -19,4 +18,54 @@ public class Group {
 
     @ManyToMany
     private List<User> members;
+
+    public Group() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+
+    public List<User> getMembers() {
+        return this.members;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setMembers(List<User> members) {
+        this.members = members;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Group group = (Group) o;
+
+        return Objects.equals(id, group.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Group(id=" + this.getId() + ", name=" + this.getName() + ", members=" + this.getMembers() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/lazy/list/moderatedomain/GroupService.java

@@ -25,6 +25,7 @@ public class GroupService {
     public List<Group> findAll() {
         return groupRepository.findAll();
     }
+
     public int countNumberOfRequestsWithFunction(ToIntFunction<List<Group>> function) {
         return function.applyAsInt(groupRepository.findAll());
     }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/lazy/list/moderatedomain/Post.java

@@ -5,10 +5,9 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -20,4 +19,54 @@ public class Post {
     @JsonBackReference
     @ManyToOne
     private User author;
+
+    public Post() {
+    }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getContent() {
+        return this.content;
+    }
+
+    public User getAuthor() {
+        return this.author;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Post post = (Post) o;
+
+        return Objects.equals(id, post.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
+
+    public String toString() {
+        return "Post(id=" + this.getId() + ", content=" + this.getContent() + ", author=" + this.getAuthor() + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/listvsset/lazy/list/moderatedomain/User.java

@@ -8,9 +8,7 @@ import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.List;
 import java.util.Objects;
-import lombok.Data;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -24,6 +22,9 @@ public class User {
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author")
     protected List<Post> posts;
 
+    public User() {
+    }
+
     @Override
     public boolean equals(Object o) {
         if (this == o) {
@@ -42,4 +43,41 @@ public class User {
     public int hashCode() {
         return id != null ? id.hashCode() : 0;
     }
+
+    public Long getId() {
+        return this.id;
+    }
+
+    public String getUsername() {
+        return this.username;
+    }
+
+    public String getEmail() {
+        return this.email;
+    }
+
+    public List<Post> getPosts() {
+        return this.posts;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public void setPosts(List<Post> posts) {
+        this.posts = posts;
+    }
+
+    public String toString() {
+        return "User(id=" + this.getId() + ", username=" + this.getUsername() + ", email=" + this.getEmail() + ", posts=" + this.getPosts()
+               + ")";
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/nplusone/defaultfetch/list/Post.java

@@ -5,10 +5,9 @@ import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
 import jakarta.persistence.Lob;
 import jakarta.persistence.ManyToOne;
-import lombok.Data;
+import java.util.Objects;
 
 @Entity
-@Data
 public class Post {
 
     @Id
@@ -20,4 +19,47 @@ public class Post {
     @JsonBackReference
     @ManyToOne
     private User author;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getContent() {
+        return content;
+    }
+
+    public void setContent(String content) {
+        this.content = content;
+    }
+
+    public User getAuthor() {
+        return author;
+    }
+
+    public void setAuthor(User author) {
+        this.author = author;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        Post post = (Post) o;
+
+        return Objects.equals(id, post.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
 }

persistence-modules/spring-boot-persistence-4/src/main/java/com/baeldung/nplusone/defaultfetch/list/User.java

@@ -7,9 +7,8 @@ import jakarta.persistence.Id;
 import jakarta.persistence.OneToMany;
 import jakarta.persistence.Table;
 import java.util.List;
-import lombok.Data;
+import java.util.Objects;
 
-@Data
 @Entity(name = "simple_user")
 @Table(name = "simple_user")
 public class User {
@@ -21,5 +20,56 @@ public class User {
 
     @JsonManagedReference
     @OneToMany(cascade = CascadeType.ALL, mappedBy = "author")
-    protected List<Post> posts;
+    private List<Post> posts;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public List<Post> getPosts() {
+        return posts;
+    }
+
+    public void setPosts(List<Post> posts) {
+        this.posts = posts;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        User user = (User) o;
+
+        return Objects.equals(id, user.id);
+    }
+
+    @Override
+    public int hashCode() {
+        return id != null ? id.hashCode() : 0;
+    }
 }

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/BaseNPlusOneIntegrationTest.java

@@ -58,16 +58,16 @@ abstract public class BaseNPlusOneIntegrationTest<T> extends ParametrizationAwar
 
     @Test
     void givenCorrectConfigurationWhenStartContextThenRepositoryIsPresent() {
-        assertThat(getService()).isNotNull();
+        assertThat(getUserService()).isNotNull();
     }
 
     @Test
     void givenCorrectDatabaseWhenStartThenDatabaseIsNotEmpty() {
-        List<?> result = getService().findAll();
+        List<?> result = getUserService().findAll();
         assertThat(result).isNotEmpty();
     }
 
-    protected Service<T> getService() {
+    protected Service<T> getUserService() {
         Class<T> parametrization = getParametrizationClass().get(0);
         return (Service<T>) serviceMap.get(parametrization);
     }

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/lazy/list/NPlusOneLazyModerateDomainIntegrationTest.java

@@ -31,14 +31,14 @@ class NPlusOneLazyModerateDomainIntegrationTest extends BaseNPlusOneIntegrationT
 
     @Test
     void givenLazyListBasedUser_whenFetchingAllUsers_thenIssueOneRequest() {
-        getService().findAll();
+        getUserService().findAll();
         assertSelectCount(1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenLazyListBasedUser_whenFetchingOneUser_thenIssueOneRequest(Long id) {
-        getService().getUserById(id);
+        getUserService().getUserById(id);
         assertSelectCount(1);
     }
 

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/lazy/list/NPlusOneLazySimpleDomainIntegrationTest.java

@@ -22,13 +22,13 @@ class NPlusOneLazySimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTes
 
     @Test
     void givenLazyListBasedUser_WhenFetchingAllUsers_ThenIssueOneRequests() {
-        getService().findAll();
+        getUserService().findAll();
         assertSelectCount(1);
     }
 
     @Test
     void givenLazyListBasedUser_WhenFetchingAllUsersCheckingPosts_ThenIssueNPlusOneRequests() {
-        int numberOfRequests = getService().countNumberOfRequestsWithFunction(users -> {
+        int numberOfRequests = getUserService().countNumberOfRequestsWithFunction(users -> {
             List<List<Post>> usersWithPosts
               = users.stream()
               .map(User::getPosts)
@@ -42,7 +42,7 @@ class NPlusOneLazySimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTes
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenLazyListBasedUser_WhenFetchingOneUser_ThenIssueTwoRequest(Long id) {
-        getService().getUserByIdWithPredicate(id, user -> !user.getPosts().isEmpty());
+        getUserService().getUserByIdWithPredicate(id, user -> !user.getPosts().isEmpty());
         assertSelectCount(2);
     }
 

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/list/NPlusOneEagerFullDomainIntegrationTest.java

@@ -37,7 +37,7 @@ class NPlusOneEagerFullDomainIntegrationTest extends BaseNPlusOneIntegrationTest
     @ParameterizedTest
     @MethodSource
     void givenEagerListBasedUser_WhenFetchingAllUsers_ThenIssueNPlusOneRequests(ToIntFunction<List<User>> function) {
-        int numberOfRequests = getService().countNumberOfRequestsWithFunction(function);
+        int numberOfRequests = getUserService().countNumberOfRequestsWithFunction(function);
         assertSelectCount(numberOfRequests);
     }
 
@@ -58,7 +58,7 @@ class NPlusOneEagerFullDomainIntegrationTest extends BaseNPlusOneIntegrationTest
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerListBasedUser_WhenFetchingOneUser_ThenUseDFS(Long id) {
-        int numberOfRequests = getService().getUserByIdWithFunction(id, this::countNumberOfRequests);
+        int numberOfRequests = getUserService().getUserByIdWithFunction(id, this::countNumberOfRequests);
         assertSelectCount(numberOfRequests);
     }
 

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/list/NPlusOneEagerModerateDomainIntegrationTest.java

@@ -34,14 +34,14 @@ class NPlusOneEagerModerateDomainIntegrationTest extends BaseNPlusOneIntegration
 
     @Test
     void givenEagerListBasedUser_whenFetchingAllUsers_thenIssueNPlusOneRequests() {
-        List<User> users = getService().findAll();
+        List<User> users = getUserService().findAll();
         assertSelectCount(users.size() + 1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerListBasedUser_whenFetchingOneUser_thenIssueOneRequest(Long id) {
-        getService().getUserById(id);
+        getUserService().getUserById(id);
         assertSelectCount(1);
     }
 

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/list/NPlusOneEagerSimpleDomainIntegrationTest.java

@@ -26,21 +26,21 @@ class NPlusOneEagerSimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTe
 
     @Test
     void givenEagerListBasedUser_WhenFetchingAllUsers_ThenIssueNPlusOneRequests() {
-        List<User> users = getService().findAll();
+        List<User> users = getUserService().findAll();
         assertSelectCount(users.size() + 1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerListBasedUser_WhenFetchingOneUser_ThenIssueOneRequest(Long id) {
-        getService().getUserById(id);
+        getUserService().getUserById(id);
         assertSelectCount(1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerListBasedUser_whenDeletePost_ThenIssueSingleUpdate(Long id) {
-        Optional<User> optionalUser = getService().getUserById(id);
+        Optional<User> optionalUser = getUserService().getUserById(id);
         assertSelectCount(1);
         optionalUser.ifPresent(user -> {
             List<Post> posts = user.getPosts();
@@ -48,10 +48,10 @@ class NPlusOneEagerSimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTe
             reset();
             if (!posts.isEmpty()) {
                 posts.get(0).setAuthor(null);
-                getService().save(user);
+                getUserService().save(user);
                 assertSelectCount(1);
                 assertUpdateCount(1);
-                getService().getUserById(id).ifPresent(updatedUser -> {
+                getUserService().getUserById(id).ifPresent(updatedUser -> {
                     assertThat(updatedUser.getPosts()).hasSize(originalNumberOfPosts - 1);
                 });
             }

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/set/NPlusOneEagerFullDomainJoinIntegrationTest.java

@@ -33,7 +33,7 @@ class NPlusOneEagerFullDomainJoinIntegrationTest extends BaseNPlusOneIntegration
 
     @Test
     void givenEagerSetBasedUser_WhenFetchingAllUsers_ThenIssueNPlusOneRequests() {
-        List<User> users = getService().findAll();
+        List<User> users = getUserService().findAll();
         assertSelectCount(users.size() + 1);
     }
 
@@ -43,7 +43,7 @@ class NPlusOneEagerFullDomainJoinIntegrationTest extends BaseNPlusOneIntegration
         HashMap<String, Set<Long>> visitedMap = new HashMap<>();
         visitedMap.put(POSTS, new HashSet<>());
         visitedMap.put(USERS, new HashSet<>());
-        int numberOfRequests = getService()
+        int numberOfRequests = getUserService()
           .getUserByIdWithFunction(id, user -> {
               int result = 1;
               visitedMap.get(USERS).add(user.getId());

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/set/NPlusOneEagerModerateDomainIntegrationTest.java

@@ -33,14 +33,14 @@ class NPlusOneEagerModerateDomainIntegrationTest extends BaseNPlusOneIntegration
 
     @Test
     void givenEagerSetBasedUser_whenFetchingAllUsers_thenIssueNPlusOneRequests() {
-        List<User> users = getService().findAll();
+        List<User> users = getUserService().findAll();
         assertSelectCount(users.size() + 1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerSetBasedUser_whenFetchingOneUser_thenIssueOneRequest(Long id) {
-        getService().getUserById(id);
+        getUserService().getUserById(id);
         assertSelectCount(1);
     }
 

persistence-modules/spring-boot-persistence-4/src/test/java/com/baeldung/listvsset/set/NPlusOneEagerSimpleDomainIntegrationTest.java

@@ -27,21 +27,21 @@ class NPlusOneEagerSimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTe
 
     @Test
     void givenEagerSetBasedUser_WhenFetchingAllUsers_ThenIssueNPlusOneRequests() {
-        List<User> users = getService().findAll();
+        List<User> users = getUserService().findAll();
         assertSelectCount(users.size() + 1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerSetBasedUser_WhenFetchingOneUser_ThenIssueOneRequest(Long id) {
-        getService().getUserById(id);
+        getUserService().getUserById(id);
         assertSelectCount(1);
     }
 
     @ParameterizedTest
     @ValueSource(longs = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10})
     void givenEagerListBasedUser_whenDeletePost_ThenIssueSingleUpdate(Long id) {
-        Optional<User> optionalUser = getService().getUserById(id);
+        Optional<User> optionalUser = getUserService().getUserById(id);
         assertSelectCount(1);
         optionalUser.ifPresent(user -> {
             Set<Post> posts = user.getPosts();
@@ -49,10 +49,10 @@ class NPlusOneEagerSimpleDomainIntegrationTest extends BaseNPlusOneIntegrationTe
             reset();
             if (!posts.isEmpty()) {
                 posts.iterator().next().setAuthor(null);
-                getService().save(user);
+                getUserService().save(user);
                 assertSelectCount(1);
                 assertUpdateCount(1);
-                getService().getUserById(id).ifPresent(updatedUser -> {
+                getUserService().getUserById(id).ifPresent(updatedUser -> {
                     assertThat(updatedUser.getPosts()).hasSize(originalNumberOfPosts - 1);
                 });
             }