luoyuxia commented on a change in pull request #16417:
URL: https://github.com/apache/flink/pull/16417#discussion_r666011934
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File path:
flink-connectors/flink-connector-kafka/src/main/java/org/apache/flink/streaming/connectors/kafka/FlinkKafkaProducer.java
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@@ -88,8 +88,7 @@
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
-import static org.apache.flink.util.Preconditions.checkNotNull;
-import static org.apache.flink.util.Preconditions.checkState;
+import static org.apache.flink.util.Preconditions.*;
Review comment:
we shouldn't use such import statment with '.*', otherwise it will be
fail to pass style check.
Just keep use
import static org.apache.flink.util.Preconditions.checkNotNull;
import static org.apache.flink.util.Preconditions.checkState;
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