带有嵌套映射器和unmappedSourcePolicy的Mapstruct Bug

我想将映射EmployeeDto到EmployeeValue。考虑以下类别：

public class EmployeeDto {

    private String telephoneNumber;
    private Integer companyId;

    public String getTelephoneNumber() {
        return telephoneNumber;
    }

    public void setTelephoneNumber(String telephoneNumber) {
        this.telephoneNumber = telephoneNumber;
    }


    public Integer getCompanyId() {
        return companyId;
    }

    public void setCompanyId(Integer companyId) {
        this.companyId = companyId;
    }

}

public class EmployeeValue {

    private String telephoneNumber;
    private Company company;

    public String getTelephoneNumber() {
        return telephoneNumber;
    }

    public void setTelephoneNumber(String telephoneNumber) {
        this.telephoneNumber = telephoneNumber;
    }

    public Company getCompany() {
        return company;
    }

    public void setCompany(Company company) {
        this.company = company;
    }

}

public class Company {

    private Integer id;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

}

我正在尝试使用mapstruct-mapper映射这些类：

@Mapper(componentModel = "cdi")
public interface EmployeeDto2EmployeeValueMapper {

    @Mapping(source ="companyId", target = "company.id")
    EmployeeValue map(EmployeeDto dto);

}

这运行得很好，因为此测试运行绿色：

class EmployeeDto2EmployeeValueMapperTest {

    private static final String TELEPHONE_NUMBER = "telephoneNumber";
    private static final int COMPANY_ID = 1;

    private EmployeeDto2EmployeeValueMapper classUnderTest = Mappers.getMapper(EmployeeDto2EmployeeValueMapper.class);

    @Test
    void map() {
        EmployeeDto employeeDto = new EmployeeDto();
        employeeDto.setTelephoneNumber(TELEPHONE_NUMBER);
        employeeDto.setCompanyId(COMPANY_ID);

        EmployeeValue outcome = classUnderTest.map(employeeDto);

        assertThat(outcome.getTelephoneNumber(), is(TELEPHONE_NUMBER));
        assertThat(outcome.getCompany().getId(), is(COMPANY_ID));
    }

}

现在，如果我添加unmappedSourcePolicy = ReportingPolicy.ERROR到映射器，那就是

@Mapper(componentModel = "cdi", unmappedSourcePolicy = ReportingPolicy.ERROR)
public interface EmployeeDto2EmployeeValueMapper {

    @Mapping(source ="companyId", target = "company.id")
    EmployeeValue map(EmployeeDto dto);

}

生成失败，并显示以下错误消息：未映射的源属性：“ telephoneNumber”。

在我看来，这似乎是一个错误，因为这些字段实际上已被映射（正如我的测试之前所证明的）。您对此有什么想法吗？

问题来源：Stack Overflow