DaoAuthenticationProvider uses DelegatingPasswordEncoder

This means that passwords will be encoded with BCrypt by default

Fixes: gh-2775

samples/javaconfig/helloworld/src/main/java/org/springframework/security/samples/config/SecurityConfig.java

@@ -18,6 +18,7 @@ package org.springframework.security.samples.config;
 import org.springframework.context.annotation.Bean;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.core.userdetails.User;
+import org.springframework.security.core.userdetails.UserDetails;
 import org.springframework.security.core.userdetails.UserDetailsService;
 import org.springframework.security.provisioning.InMemoryUserDetailsManager;
 
@@ -27,9 +28,8 @@ public class SecurityConfig {
 	// @formatter:off
 	@Bean
 	public UserDetailsService userDetailsService() throws Exception {
-		InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();
-		manager.createUser(User.withUsername("user").password("password").roles("USER").build());
-		return manager;
+		UserDetails user = User.withDefaultPasswordEncoder().username("user").password("password").roles("USER").build();
+		return new InMemoryUserDetailsManager(user);
 	}
 	// @formatter:on
 }