danielolszewski / blog Goto Github PK

Hi Daniel,

I have followed your Faster Spring Boot Startup post. After making the suggested changes in the main class, my main class looks like the following:

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @Configuration
    @Profile("dev")
    @ComponentScan(lazyInit = true)
    static class LocalConfig {
    }

    // A couple of @Bean definitions

}

I run the application with:

mvn spring-boot:run -Drun.profiles=dev

After running, I sampled the application with VisualVM. This is the result:

Despite the lazyInit = true, the application still spends a lot of time on preInstantiateSingletons.

Is this expected? I thought that after setting lazyInit = true, the application would not pre-instantiate the singletons at all.

What am I missing here?

Best

Thank you for the tutorial.
Still, Can you please explain?

Thanks!

Hello, do you know if it is possible to also convert the request param name to another one in the criteria ? For example, the request param in the URL might be "date-from" and I want the bound attribute in the criteria to be "dateFrom". Is it possible ?

Thanks