YARN-4456. Clean up Lint warnings in nodemanager (templedf via rkanter)

(cherry picked from commit 6fbfb501f2e27045da5ce8f48dde881b29328b4a)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/logaggregation/TestLogAggregationService.java

@@ -2138,7 +2138,7 @@ public class TestLogAggregationService extends BaseContainerManagerTest {
             ApplicationEventType.APPLICATION_LOG_HANDLING_INITED) };
     checkEvents(appEventHandler, expectedInitEvents, false, "getType",
         "getApplicationID");
-    reset(appEventHandler);
+    reset(new EventHandler[] {appEventHandler});
 
     logAggregationService.handle(new LogHandlerAppFinishedEvent(appId));
     logAggregationService.stop();