Update OAuth2ResourceServer config - Spring Security quickstart

Closes (#622)

Signed-off-by: Dami <[email protected]>

spring/rest-authz-resource-server/src/main/java/org/keycloak/quickstart/OAuth2ResourceServerSecurityConfiguration.java

@@ -29,11 +29,11 @@
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
-import org.springframework.security.config.annotation.web.configurers.oauth2.server.resource.OAuth2ResourceServerConfigurer;
 import org.springframework.security.oauth2.jwt.JwtDecoder;
 import org.springframework.security.oauth2.jwt.NimbusJwtDecoder;
 import org.springframework.security.oauth2.server.resource.web.authentication.BearerTokenAuthenticationFilter;
 import org.springframework.security.web.SecurityFilterChain;
+import static org.springframework.security.config.Customizer.withDefaults;
 
 /**
  * OAuth resource configuration.
@@ -53,7 +53,9 @@ public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Excepti
 				.authorizeHttpRequests((authorize) -> authorize
 						.anyRequest().authenticated()
 				)
-				.oauth2ResourceServer(OAuth2ResourceServerConfigurer::jwt)
+				.oauth2ResourceServer((oauth2) -> oauth2
+						.jwt(withDefaults())
+				)
 				.addFilterAfter(createPolicyEnforcerFilter(), BearerTokenAuthenticationFilter.class);
 		return http.build();
 	}