Issues with a Spring #Configurable class not getting its dependencies autowired - spring

Question

I am trying to configure Load Time Weaving for my Spring Boot app to properly autowire dependencies on a #Configurable java class.
Here is my configuration/main class:
package com.bignibou;
#Configuration
#EnableAutoConfiguration(exclude = { SecurityAutoConfiguration.class, ThymeleafAutoConfiguration.class, FlywayAutoConfiguration.class })
#EnableSpringConfigured
#EnableLoadTimeWeaving(aspectjWeaving = AspectJWeaving.ENABLED)
#ComponentScan
public class Application {
public static void main(String[] args) throws Exception {
SpringApplication.run(Application.class, args);
}
}
Here is how I start the application (my gradle build renamed the spring-instrument jar):
java -javaagent:build/lib/springinstrument.jar -jar myapp.jar
Here is the #Configurable class that does not get its dependencies autowired:
package com.bignibou.converter;
#Configurable
public class StringToDayToTimeSlotConverter implements Converter<String, DayToTimeSlot> {
#Autowired
private DayToTimeSlotRepository dayToTimeSlotRepository;//NOT AUTOWIRED!!
#Override
public DayToTimeSlot convert(String id) {
return dayToTimeSlotRepository.findOne(Long.parseLong(id));//NPE HERE!!
}
}
Here is where the class is instantiated (with new):
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = { "com.bignibou.controller" }, useDefaultFilters = false, includeFilters = { #Filter(type = FilterType.ANNOTATION, value = Controller.class),
#Filter(type = FilterType.ANNOTATION, value = ControllerAdvice.class) })
#Import(ApplicationControllerAdvice.class)
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {
...
#Override
public void addFormatters(FormatterRegistry registry) {
registry.addConverter(new DayToTimeSlotToStringConverter());
registry.addConverter(new StringToDayToTimeSlotConverter());//INSTANTIATED HERE!
registry.addConverter(new LanguageToStringConverter());
registry.addConverter(new StringToLanguageConverter());
registry.addConverter(new AddressToStringConverter());
registry.addConverter(new StringToAddressConverter());
super.addFormatters(registry);
}
Can anyone please help figure out why StringToDayToTimeSlotConverter's dependencies are not autowired?

Answer 1

Very old question with at least a suggestion for a solution that I will turn into an answer so that the question can be "closed". Turn StringToDayToTimeSlotConverter into a Bean as follows:
#Bean
public class StringToDayToTimeSlotConverter implements Converter<String, DayToTimeSlot> {
#Autowired
private DayToTimeSlotRepository dayToTimeSlotRepository;
#Override
public DayToTimeSlot convert(String id) {
return dayToTimeSlotRepository.findOne(Long.parseLong(id));
}
}
Inject all available converters in WebMvcConfiguration as follows:
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = { "com.bignibou.controller" }, useDefaultFilters = false, includeFilters = { #Filter(type = FilterType.ANNOTATION, value = Controller.class),
#Filter(type = FilterType.ANNOTATION, value = ControllerAdvice.class) })
#Import(ApplicationControllerAdvice.class)
public class WebMvcConfiguration extends WebMvcConfigurerAdapter {
#Autowired
List<Converter> converters;
#Override
public void addFormatters(FormatterRegistry registry) {
for (Converter converter : converter) {
registry.addConverter(converter);
}
super.addFormatters(registry);
}
}