jhuan31 commented on a change in pull request #840:  ZOOKEEPER-3143 Pluggable 
metrics system for ZooKeeper - Data Collection on Server
URL: https://github.com/apache/zookeeper/pull/840#discussion_r264024190
 
 

 ##########
 File path: 
zookeeper-server/src/test/java/org/apache/zookeeper/server/watch/WatcherCleanerTest.java
 ##########
 @@ -134,8 +136,10 @@ public void testMaxInProcessingDeadWatchers() {
 
     @Test
     public void testDeadWatcherMetrics() {
+        ServerMetrics serverMetrics = new ServerMetrics(new 
DefaultMetricsProvider());
 
 Review comment:
   Maybe we don't need to create a new instance, use 
ServerMetrics.DEFAULT_METRICS_FOR_TESTS instead?

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