I am solving SonarQube issues , in that issues i face an bellow error but can not understant what kind of error is this ,

Here is my entity class

```
@Entity
@Cacheable
@DynamicUpdate
@org.hibernate.annotations.Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
@Table(name = Vendor.TABLE_NAME)
public class Vendor 
{

    @Column(name = VENDOR_MODIFIED_BY_FOREIGN_KEY, nullable = true)

    private Integer modifiedBy;

    public Integer getModifiedBy() {

        return modifiedBy == null ? 0 : modifiedBy;

//Boxed value is unboxed and then immediately reboxed in com.bostonbyte.thelift.entities.vendors.Vendor.getModifiedBy() 

    }

    public void setModifiedBy(Integer modifiedBy) {

        this.modifiedBy = modifiedBy;

    }

```

I get an error at 

```
 public Integer getModifiedBy() {

                return modifiedBy == null ? 0 : modifiedBy;

```

Could you please let me know what kind of error is this?