Post.java

import lombok.Data;
import lombok.ToString;

import javax.persistence.*;

@Data
@Entity
@ToString
@Table(name = "post")
public class Post {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "post_id")
    private Integer postId;

    @Column(name = "post_name")
    private String postName;

    @Column(name = "post_description")
    private String postDescription;

    @Column(name = "created_on")
    private Long createdOn;

    @Column(name = "created_by")
    private String createdBy;

    @Column(name = "modified_on")
    private Long modifiedOn;

    @Column(name = "modified_by")
    private String modifiedBy;
}

User.java

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import javax.persistence.*;

@Data
@Entity
@Table(name = "user_details")
@NoArgsConstructor
@AllArgsConstructor
public class UserDetails {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "user_id")
    private Integer userId;

    @Column(name = "first_name")
    private String firstName;

    @Column(name = "middle_name")
    private String middleName;

    @Column(name = "last_name")
    private String lastName;

    @Column(name = "email")
    private String email;

    @Column(name = "password_hash")
    private String passwordHash;

    @Column(name = "created_on")
    private Long createdOn;

    @Column(name = "created_by")
    private String createdBy;

    @Column(name = "modified_on")
    private Long modifiedOn;

    @Column(name = "modified_by")
    private String modifiedBy;

}