MapStruct #SuperBuilder Return type error not cast - spring

Question

BaseDto:
#Data
#NoArgsConstructor
#SuperBuilder
public class BaseDto{
// Some fields
}
TestDto:
#Data
#NoArgsConstructor
#SuperBuilder
public class TestDto extends BaseDto {
// Some fields
}
Base Mapper:
#MapperConfig(
componentModel = "spring"
)
public interface BaseMapper<E extends BaseEntity, DTO extends BaseDto> {
DTO toDto(E entity);
....
}
Mapper Generate Impl:
#Component
public class TestMapperImpl implements BaseMapper {
#Override
public TestDto toDTO(Test entity) {
BaseDtoBuilder<?, ?> testDto= BaseDto.builder();
if ( entity != null ) {
if ( entity.getId() != null ) {
testDto.id(entity.getId() );
}
}
return testDto.build();
}
}
Mapper create Impl class automatically. Problem is return type.
BaseDtoBuilder<?, ?> testDto= BaseDto.builder();
return testDto.build();
Intelij give error return type, it must be cast as TestDto. Because of mapper return BaseDto. How can i solve this problem?
Note: if use #Builder, there is no error working fine, this time I can't access parent properties.

Answer 1

I solve problem with this configuration: MapStruct and Lombok not working together
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${org.projectlombok.version}</version>
</path>
<!-- This is needed when using Lombok 1.18.16 and above -->
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-mapstruct-binding</artifactId>
<version>0.2.0</version>
</path>
<!-- Mapstruct should follow the lombok path(s) -->
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
thanks for your help xerx593