Replace @Data, replace typo in word "exeption" to "exception"

src/main/java/site/easystartup/web/project/domain/exception/ProjectNotFoundException.java

@@ -1,4 +1,4 @@
-package site.easystartup.web.project.domain.exeption;
+package site.easystartup.web.project.domain.exception;
 
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.ResponseStatus;

src/main/java/site/easystartup/web/project/domain/model/Participant.java

@@ -1,14 +1,17 @@
 package site.easystartup.web.project.domain.model;
 
-import lombok.Data;
+import lombok.*;
+import org.hibernate.Hibernate;
 import site.easystartup.web.domain.User;
 
 import javax.persistence.*;
-import javax.validation.constraints.NotNull;
 import java.util.List;
-import java.util.Set;
+import java.util.Objects;
 
-@Data
+@Getter
+@Setter
+@ToString
+@RequiredArgsConstructor
 @Entity
 @Table(name = "participant")
 public class Participant {
@@ -31,5 +34,19 @@ public class Participant {
     @JoinTable(name = "user_request",
     joinColumns = @JoinColumn(name = "participant_id"),
     inverseJoinColumns = @JoinColumn(name = "user_id"))
+    @ToString.Exclude
     private List<User> requests;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        Participant that = (Participant) o;
+        return participantId != null && Objects.equals(participantId, that.participantId);
+    }
+
+    @Override
+    public int hashCode() {
+        return getClass().hashCode();
+    }
 }

src/main/java/site/easystartup/web/project/domain/model/Project.java

@@ -1,7 +1,8 @@
 package site.easystartup.web.project.domain.model;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
-import lombok.Data;
+import lombok.*;
+import org.hibernate.Hibernate;
 import site.easystartup.web.domain.User;
 
 import javax.persistence.*;
@@ -9,9 +10,12 @@ import javax.validation.constraints.NotNull;
 import javax.validation.constraints.Size;
 import java.time.LocalDateTime;
 import java.util.List;
-import java.util.Set;
+import java.util.Objects;
 
-@Data
+@Getter
+@Setter
+@ToString
+@RequiredArgsConstructor
 @Entity
 @Table(name = "project")
 public class Project {
@@ -41,6 +45,7 @@ public class Project {
             joinColumns = @JoinColumn(name = "project_id"),
             inverseJoinColumns = @JoinColumn(name = "tag_id")
     )
+    @ToString.Exclude
     private List<Tag> technology;
 
     @ManyToOne
@@ -48,6 +53,7 @@ public class Project {
     private User owner;
 
     @OneToMany(mappedBy = "project", cascade = {CascadeType.ALL})
+    @ToString.Exclude
     private List<Participant> participants;
 
     @Column(name = "created_date", updatable = false)
@@ -58,4 +64,17 @@ public class Project {
     private void createdDate() {
         this.createdDate = LocalDateTime.now();
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        Project project = (Project) o;
+        return projectId != null && Objects.equals(projectId, project.projectId);
+    }
+
+    @Override
+    public int hashCode() {
+        return getClass().hashCode();
+    }
 }

src/main/java/site/easystartup/web/project/domain/model/Tag.java

@@ -1,11 +1,16 @@
 package site.easystartup.web.project.domain.model;
 
-import lombok.Data;
+import lombok.*;
+import org.hibernate.Hibernate;
 
 import javax.persistence.*;
+import java.util.Objects;
 import java.util.Set;
 
-@Data
+@Getter
+@Setter
+@ToString
+@RequiredArgsConstructor
 @Entity
 @Table(name = "tag")
 public class Tag {
@@ -18,5 +23,19 @@ public class Tag {
     private String tagName;
 
     @ManyToMany(mappedBy = "technology")
+    @ToString.Exclude
     private Set<Project> projects;
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || Hibernate.getClass(this) != Hibernate.getClass(o)) return false;
+        Tag tag = (Tag) o;
+        return tagId != null && Objects.equals(tagId, tag.tagId);
+    }
+
+    @Override
+    public int hashCode() {
+        return getClass().hashCode();
+    }
 }

src/main/java/site/easystartup/web/project/service/ProjectService.java

@@ -4,10 +4,9 @@ import lombok.RequiredArgsConstructor;
 import org.modelmapper.ModelMapper;
 import org.springframework.stereotype.Service;
 import site.easystartup.web.domain.User;
-import site.easystartup.web.project.domain.exeption.ProjectNotFoundException;
+import site.easystartup.web.project.domain.exception.ProjectNotFoundException;
 import site.easystartup.web.project.domain.model.Participant;
 import site.easystartup.web.project.domain.model.Project;
-import site.easystartup.web.project.domain.model.Tag;
 import site.easystartup.web.project.domain.payload.requst.ProjectRequest;
 import site.easystartup.web.project.repo.ParticipantRepo;
 import site.easystartup.web.project.repo.ProjectRepo;
@@ -15,8 +14,6 @@ import site.easystartup.web.service.UserService;
 import site.easystartup.web.storage.service.StorageService;
 
 import java.security.Principal;
-import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.stream.Collectors;