aajisaka commented on code in PR #4463:
URL: https://github.com/apache/hadoop/pull/4463#discussion_r979418568
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainersLauncher.java:
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@@ -190,15 +184,16 @@ public void testRecoverPausedContainerEvent()
public void testCleanupContainerEvent()
throws IllegalArgumentException, IllegalAccessException, IOException {
Map<ContainerId, ContainerLaunch> dummyMap = Collections
- .synchronizedMap(new HashMap<ContainerId, ContainerLaunch>());
+ .synchronizedMap(new HashMap<>());
dummyMap.put(containerId, containerLaunch);
- Whitebox.setInternalState(spy, "running", dummyMap);
+ spy.running.clear();
+ spy.running.putAll(dummyMap);
Review Comment:
Could you simplify as below?
```
spy.running.clear();
spy.running.put(containerId, containerLaunch);
```
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