Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4552#discussion_r162107348
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/SpilledSubpartitionView.java
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@@ -31,7 +31,6 @@
import org.slf4j.LoggerFactory;
import javax.annotation.Nullable;
-import javax.annotation.concurrent.GuardedBy;
--- End diff --
also found that relic of FLINK-8225 (removed in my patch for the previous
commit, and it should be inside FLINK-7456, not the hotfix which we will revert
later)
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