I am getting error while running with this @bean

Question

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'localeResolver' defined in com.restservices.NewSpringbootbuildingblocksApplication: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.LocaleResolver]: Factory method 'localeResolver' threw exception; nested exception is java.lang.StackOverflowError
    at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658) ~[spring-beans-5.3.23.jar:5.3.23]

My code is running when I commented below mentioned code

    @Bean
    public LocaleResolver localeResolver() {
            AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
            localeResolver.setDefaultLocale(Locale.US);
            return localeResolver();
    }

Answer 1

You can review your error again. It is throwing below exception.

threw exception; nested exception is java.lang.StackOverflowError

Check your code again you are calling method recursively.

@Bean
public LocaleResolver localeResolver() {
        AcceptHeaderLocaleResolver localeResolver = new AcceptHeaderLocaleResolver();
        localeResolver.setDefaultLocale(Locale.US);
        return localeResolver(); <-- Calling same method again.
}

I think you want to return localeResolver variable instead of calling same method again.