Github user hanm commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/580#discussion_r217864986
--- Diff: src/java/test/org/apache/zookeeper/server/ServerMetricsTest.java
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@@ -0,0 +1,91 @@
+package org.apache.zookeeper.server;
--- End diff --
Please add Apache License Header to this file. Missing of the header causes
release audit warnings like
[this](https://builds.apache.org/job/PreCommit-ZOOKEEPER-github-pr-build/2181/artifact/patchprocess/patchReleaseAuditProblems.txt)
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