update

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/api/AdminServiceAddressLocator.java

@@ -31,8 +31,7 @@ import javax.annotation.PostConstruct;
 public class AdminServiceAddressLocator {
 
   private static final int DEFAULT_TIMEOUT_MS = 1000;
-//  private static final long REFRESH_INTERVAL = 5 * 60 * 1000;
-  private static final long REFRESH_INTERVAL =  1000;
+  private static final long REFRESH_INTERVAL = 5 * 60 * 1000;
   private static final int RETRY_TIMES = 3;
   private static final String ADMIN_SERVICE_URL_PATH = "/services/admin";
 

apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/service/ReleaseService.java

 package com.ctrip.framework.apollo.portal.service;
 
+import com.google.common.base.Objects;
 import com.google.gson.Gson;
 
 import com.ctrip.framework.apollo.core.dto.ReleaseDTO;
@@ -97,7 +98,7 @@ public class ReleaseService {
       String key = entry.getKey();
       String firstValue = entry.getValue();
       String secondValue = secondItems.get(key);
-      if (secondValue == null || !firstValue.equals(secondValue)) {
+      if (!Objects.equal(firstValue, secondValue)) {
         compareResult.addEntityPair(new KVEntity(key, firstValue), new KVEntity(key, secondValue));
       }
     }