Why can't I use Bean that I have created before? - spring

Question

I have a pretty simple class and just want to create #Bean and inject it in the method. But when I use passwordEncoder - it can't find an instance of it. Same for daoAuthenticationProvider ( daoAuthenticationProvider bean uses passwordEncoder bean ).
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled=true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
UserService userService;
#Autowired
public SecurityConfig(UserService userService) {
this.userService = userService;
}
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.authenticationProvider(daoAuthenticationProvider);
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http
.httpBasic()
.and()
.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.NEVER)
.and()
.csrf()
.disable();
}
#Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder(10);
}
#Bean
public DaoAuthenticationProvider daoAuthenticationProvider() {
DaoAuthenticationProvider daoProvider = new DaoAuthenticationProvider();
daoProvider.setPasswordEncoder(passwordEncoder);
daoProvider.setUserDetailsService(userService);
return daoProvider;
}
}

Answer 1

This looks like a compilation issue not a Spring problem. You would need to either have an instance named passwordEncoder or inject it by invoking the method passwordEncoder() as follows:
#Bean
public DaoAuthenticationProvider daoAuthenticationProvider() {
[...]
daoProvider.setPasswordEncoder(passwordEncoder());
[...]
}