Remove JDBC from secure-web sample

Fixes gh-1534

spring-boot-samples/spring-boot-sample-web-secure/pom.xml

@@ -23,18 +23,10 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-security</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starter-jdbc</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-thymeleaf</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>com.h2database</groupId>
-			<artifactId>h2</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>org.apache.httpcomponents</groupId>
 			<artifactId>httpclient</artifactId>

spring-boot-samples/spring-boot-sample-web-secure/src/main/java/sample/ui/secure/SampleWebSecureApplication.java

@@ -19,18 +19,14 @@ package sample.ui.secure;
 import java.util.Date;
 import java.util.Map;
 
-import javax.sql.DataSource;
-
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.boot.autoconfigure.security.SecurityProperties;
 import org.springframework.boot.builder.SpringApplicationBuilder;
-import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
-import org.springframework.core.Ordered;
+import org.springframework.context.annotation.Configuration;
 import org.springframework.core.annotation.Order;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
-import org.springframework.security.config.annotation.authentication.configurers.GlobalAuthenticationConfigurerAdapter;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.stereotype.Controller;
@@ -65,16 +61,7 @@ public class SampleWebSecureApplication extends WebMvcConfigurerAdapter {
 		registry.addViewController("/login").setViewName("login");
 	}
 
-	@Bean
-	public ApplicationSecurity applicationSecurity() {
-		return new ApplicationSecurity();
-	}
-
-	@Bean
-	public AuthenticationSecurity authenticationSecurity() {
-		return new AuthenticationSecurity();
-	}
-
+	@Configuration
 	@Order(SecurityProperties.ACCESS_OVERRIDE_ORDER)
 	protected static class ApplicationSecurity extends WebSecurityConfigurerAdapter {
 
@@ -86,20 +73,12 @@ public class SampleWebSecureApplication extends WebMvcConfigurerAdapter {
 			http.authorizeRequests().anyRequest().fullyAuthenticated().and().formLogin()
 					.loginPage("/login").failureUrl("/login?error").permitAll();
 		}
-	}
-
-	@Order(Ordered.HIGHEST_PRECEDENCE + 10)
-	protected static class AuthenticationSecurity extends
-			GlobalAuthenticationConfigurerAdapter {
-
-		@Autowired
-		private DataSource dataSource;
 
 		@Override
-		public void init(AuthenticationManagerBuilder auth) throws Exception {
-			auth.jdbcAuthentication().dataSource(this.dataSource).withUser("admin")
-					.password("admin").roles("ADMIN", "USER").and().withUser("user")
-					.password("user").roles("USER");
+		public void configure(AuthenticationManagerBuilder auth) throws Exception {
+			auth.inMemoryAuthentication().withUser("admin").password("admin")
+					.roles("ADMIN", "USER").and().withUser("user").password("user")
+					.roles("USER");
 		}
 
 	}