Adding grunt based javascript projects into Spring application in development

DevWebResourceAdapter.java

@Configuration
@Profile("dev")
public class DevWebResourceAdapter extends WebMvcConfigurerAdapter {

    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/**")
            .addResourceLocations("file:./submodule-web/app/");
        registry.addResourceHandler("/bower_components/**")
            .addResourceLocations("file:./submodule-web/bower_components/");
    }
}