YARN-8730. TestRMWebServiceAppsNodelabel#testAppsRunning fails. Contributed by Eric Payne

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/ResourceInfo.java

@@ -27,7 +27,6 @@ import org.apache.hadoop.yarn.api.records.Resource;
 @XmlRootElement
 @XmlAccessorType(XmlAccessType.FIELD)
 public class ResourceInfo {
-  Resource res;
   long memory;
   int vCores;
   
@@ -35,7 +34,6 @@ public class ResourceInfo {
   }
 
   public ResourceInfo(Resource res) {
-    this.res = res;
     memory = res.getMemorySize();
     vCores = res.getVirtualCores();
   }
@@ -62,6 +60,6 @@ public class ResourceInfo {
   }
 
   public Resource getResource() {
-    return res;
+    return Resource.newInstance(memory, vCores);
   }
 }