## What is the purpose of the change Refactor TtlListState to use only loops instead of java stream API to exclude any performance impact
## Brief change log - Refactor TtlListState.updateTs() to use loop - Refactor TtlListState.collect() to use loop - auxiliary methods in TtlUtils ## Verifying this change existing tests ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (no) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (yes) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (not applicable) [ Full content available at: https://github.com/apache/flink/pull/6683 ] This message was relayed via gitbox.apache.org for devnull@infra.apache.org