Could not set field value by reflection error

I have a class like below:

import lombok.Getter;
import lombok.Setter;
import org.framework.model.core.baseInfo.SubSystemType;

import javax.persistence.Entity;
import javax.persistence.PrimaryKeyJoinColumn;
import javax.persistence.Table;


@Entity
@Table(name = "CORE_POWER_TYPE_DOCUMENT")
@PrimaryKeyJoinColumn(name = "Base_Power_Type_Id")
@Getter
@Setter
public class StoragePowerType extends BasePowerType {

    @Override
    public SubSystemType getsystemType() {
        return SubSystemType.storing;
    }

}

and below exception id throwed:

"****counld not set field value [org.model.core.power.type.StoragePowerType@203cb33d] value by reflection ****"

Do you know what is the problem??

Most likely some property inside BasePowerType is declared as private, with no getter and setter.

Each property of JPA entity must either be public or have methods get<PropertyName>() and set<PropertyName>() defined. Otherwise the framework you are using (Hibernate?) will not be able to access the property.
So use either:

public Long id;

Or:

private Long id;

public Long getId() { return id; }
public void setId(Long value) { id = value; }

Try to follow guidelines from here: Create the perfect JPA entity [closed]
.