zhijiang created FLINK-14289:
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Summary: Remove Optional fields from RecordWriter relevant classes
Key: FLINK-14289
URL: https://issues.apache.org/jira/browse/FLINK-14289
Project: Flink
Issue Type: Sub-task
Components: Runtime / Task
Reporter: zhijiang
Assignee: zhijiang
Based on the code style guides for [Jave
Optional|[https://flink.apache.org/contributing/code-style-and-quality-java.html#java-optional]|https://flink.apache.org/contributing/code-style-and-quality-java.html#java-optional],]
, the optional should not be used for class fields.
So we remove the optional usages from RecordWriter, BroadcastRecordWriter and
ChannelSelectorRecordWriter.
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