Add missing javadoc to AuthorizationServerProperties

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/authserver/AuthorizationServerProperties.java

@@ -19,6 +19,8 @@ package org.springframework.boot.autoconfigure.security.oauth2.authserver;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 
 /**
+ * Configuration properties for OAuth2 Authorization server.
+ *
  * @author Dave Syer
  */
 @ConfigurationProperties("security.oauth2.authorization")

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/security/oauth2/authserver/OAuth2AuthorizationServerConfiguration.java

@@ -24,6 +24,7 @@ import javax.annotation.PostConstruct;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;