JPA / Hibernate - returns duplicated rows

package example.database.entities;

​

import lombok.Getter;

import lombok.Setter;

​

import javax.persistence.*;

import java.util.Date;

​

@Getter

@Setter

@Entity

@IdClass(DocumentKey.class)  // <------------ REQUIRED

public class DocumentEntity {

​

    private Long count;

​

    @Id  // <-------------------------------- REQUIRED

    private String name;

​

    @Id  // <-------------------------------- REQUIRED

    private String type;

​

    private Date creationTime;

    private Date updateTime;

}

package example.database.entities;

​

import lombok.*;

​

import java.io.Serializable;

import java.util.Objects;

​

@Getter

@Setter

@NoArgsConstructor

@AllArgsConstructor

public class DocumentKey implements Serializable {

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    private String name;

    private String type;

​

    @Override

    public boolean equals(Object o) {

        if (this == o) {

            return true;

        }

        if (o == null || getClass() != o.getClass()) {

            return false;

        }

        DocumentKey that = (DocumentKey) o;

        return Objects.equals(this.name, that.name) && Objects.equals(this.type, that.type);

    }

​

    @Override

    public int hashCode() {

        return Objects.hash(this.name, this.type);

    }

}