Add deprecations.

pom.xml

@@ -28,7 +28,8 @@
 	<properties>
 		<bintray.package>commons</bintray.package>
 		<evictor.version>1.0.0</evictor.version>
-		<spring-security-oauth2-autoconfigure.version>2.4.13</spring-security-oauth2-autoconfigure.version>
+		<!-- Deprecated - reached EOL -->
+		<spring-security-oauth2-autoconfigure.version>2.5.2</spring-security-oauth2-autoconfigure.version>
 	</properties>
 	<build>
 		<plugins>

spring-cloud-loadbalancer/src/main/java/org/springframework/cloud/loadbalancer/security/OAuth2LoadBalancerClientAutoConfiguration.java

@@ -40,6 +40,7 @@ import org.springframework.security.oauth2.client.OAuth2RestTemplate;
 @ConditionalOnClass(OAuth2RestTemplate.class)
 @ConditionalOnProperty("spring.cloud.oauth2.load-balanced.enabled")
 @AutoConfigureAfter(OAuth2AutoConfiguration.class)
+@Deprecated // spring-security-oauth2 reached EOL
 public class OAuth2LoadBalancerClientAutoConfiguration {
 
 	@Configuration(proxyBeanMethods = false)