List spring boot configuration and configure Hystrix using application.properties instead of config.properties

HystrixConfig.java

@Configuration
public class HystrixConfig {

    @Autowired
    private Environment env;

    @EventListener({
            ContextRefreshedEvent.class, // on spring start
            EnvironmentChangeEvent.class // on configuration changes, requires spring-cloud
        }
    )
    public void onRefresh(ApplicationContextEvent event) {
        final MutablePropertySources mps = ((AbstractEnvironment)this.env).getPropertySources();
        StreamSupport.stream(mps.spliterator(), false)
            .filter(ps -> ps instanceof EnumerablePropertySource)
            .map(ps -> ((EnumerablePropertySource<?>)ps).getPropertyNames())
            .flatMap(Arrays::<String>stream)
            .filter(ps -> ps.startsWith("hystrix."))
            .forEach(propName -> {
                ConfigurationManager.getConfigInstance().setProperty(propName, this.env.getProperty(propName));
                // System.err.println(propName + "\t= " + this.env.getProperty(propName));
            });
        
    }
    // more config
}

https://github.com/sterlp/training/tree/master/spring-hystrix