Spring Boot - Log all configuration properties on application startup

PropertyLogger.java

package io.github.sandornemeth.spring;

import java.util.Arrays;
import java.util.stream.StreamSupport;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.context.event.EventListener;
import org.springframework.core.env.AbstractEnvironment;
import org.springframework.core.env.EnumerablePropertySource;
import org.springframework.core.env.Environment;
import org.springframework.core.env.MutablePropertySources;
import org.springframework.stereotype.Component;

@Component
public class PropertyLogger  {

    private static final Logger LOGGER = LoggerFactory.getLogger(PropertyLogger.class);

    @EventListener
    public void handleContextRefresh(ContextRefreshedEvent event) {
        final Environment env = event.getApplicationContext().getEnvironment();
        LOGGER.info("====== Environment and configuration ======");
        LOGGER.info("Active profiles: {}", Arrays.toString(env.getActiveProfiles()));
        final MutablePropertySources sources = ((AbstractEnvironment) env).getPropertySources();
        StreamSupport.stream(sources.spliterator(), false)
                .filter(ps -> ps instanceof EnumerablePropertySource)
                .map(ps -> ((EnumerablePropertySource) ps).getPropertyNames())
                .flatMap(Arrays::stream)
                .distinct()
                .filter(prop -> !(prop.contains("credentials") || prop.contains("password")))
                .forEach(prop -> LOGGER.info("{}: {}", prop, env.getProperty(prop)));
        LOGGER.info("===========================================");
    }
}

Thank you!

Doesn't work if there is a configuration problem (e.g. a bean can't initialize due to a missing property, then the APPLICATION FAILED TO START); it's not even executed...

Worked for me with Spring Boot 2.6.3.

I created a placeholder for a non existant property @Value("${pepe}") private String pepe; and got this.

17:10:59.488 [main] ERROR o.s.boot.SpringApplication - Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'generalInfo': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'pepe' in value "${pepe}"
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
Caused by: java.lang.IllegalArgumentException: Could not resolve placeholder 'pepe' in value "${pepe}"

Worked for me with Spring Boot 2.6.3.

OK great then!! the project I was working on used v2.5.3 so seems it's been fixed since then...

you saved the day! thanks

Works like a charm with Spring Boot 2.7.3

Works great. But when the application crashes, it is not called, as already mentioned. This can be fixed, with a listener, which is manually added to the spring application. See here
https://gist.github.com/Christian-Oette/a0bb05cb703fea20d28bbf46b7ce7574

How can I use this code in the public static void main(String[] args) method on startup?