diff --git a/spring-security-oauth/spring-security-oauth-resource/src/main/java/org/baeldung/config/OAuth2ResourceServerConfigDemo.java b/spring-security-oauth/spring-security-oauth-resource/src/main/java/org/baeldung/config/OAuth2ResourceServerConfigDemo.java
deleted file mode 100644
index 0e80b7bc9c..0000000000
--- a/spring-security-oauth/spring-security-oauth-resource/src/main/java/org/baeldung/config/OAuth2ResourceServerConfigDemo.java
+++ /dev/null
@@ -1,31 +0,0 @@
-package org.baeldung.config;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.security.config.annotation.web.builders.HttpSecurity;
-import org.springframework.security.config.http.SessionCreationPolicy;
-import org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfigurerAdapter;
-import org.springframework.security.oauth2.provider.token.TokenStore;
-import org.springframework.security.oauth2.provider.token.store.InMemoryTokenStore;
-
-//@Configuration
-//@EnableResourceServer
-public class OAuth2ResourceServerConfigDemo extends ResourceServerConfigurerAdapter {
-
-    //
-
-    @Override
-    public void configure(final HttpSecurity http) throws Exception {
-        // @formatter:off
-        http
-            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED)
-            .and().authorizeRequests().anyRequest().authenticated();
-            ;
-        // @formatter:on
-    }
-
-    @Bean
-    public TokenStore tokenStore() {
-        return new InMemoryTokenStore();
-    }
-
-}
diff --git a/spring-security-oauth/spring-security-oauth-server/src/main/java/org/baeldung/config/OAuth2AuthorizationServerConfigDemo.java b/spring-security-oauth/spring-security-oauth-server/src/main/java/org/baeldung/config/OAuth2AuthorizationServerConfigDemo.java
deleted file mode 100644
index e37cd93e63..0000000000
--- a/spring-security-oauth/spring-security-oauth-server/src/main/java/org/baeldung/config/OAuth2AuthorizationServerConfigDemo.java
+++ /dev/null
@@ -1,51 +0,0 @@
-package org.baeldung.config;
-
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.context.annotation.Bean;
-import org.springframework.security.authentication.AuthenticationManager;
-import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
-import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
-import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
-import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
-import org.springframework.security.oauth2.provider.token.TokenStore;
-import org.springframework.security.oauth2.provider.token.store.InMemoryTokenStore;
-
-//@Configuration
-//@EnableAuthorizationServer
-public class OAuth2AuthorizationServerConfigDemo extends AuthorizationServerConfigurerAdapter {
-
-    @Autowired
-    @Qualifier("authenticationManagerBean")
-    private AuthenticationManager authenticationManager;
-
-    //
-
-    @Override
-    public void configure(final AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
-        oauthServer.tokenKeyAccess("permitAll()").checkTokenAccess("isAuthenticated()");
-    }
-
-    @Override
-    public void configure(final ClientDetailsServiceConfigurer clients) throws Exception { // @formatter:off
-        clients.inMemory()
-               .withClient("fooClientIdPassword")
-               .secret("secret")
-               .authorizedGrantTypes("password", "authorization_code", "refresh_token")
-               .scopes("foo", "read", "write")
-               .accessTokenValiditySeconds(3600) // 1 hour
-               .refreshTokenValiditySeconds(2592000) // 30 days
-               ;
-    } // @formatter:on
-
-    @Override
-    public void configure(final AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
-        endpoints.tokenStore(tokenStore()).authenticationManager(authenticationManager);
-    }
-
-    @Bean
-    public TokenStore tokenStore() {
-        return new InMemoryTokenStore();
-    }
-
-}