Github user sihuazhou commented on a diff in the pull request: https://github.com/apache/flink/pull/6156#discussion_r194796355 --- Diff: flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBListState.java --- @@ -94,6 +94,11 @@ public RocksDBListState( return valueSerializer; } + @Override + public byte[] getSerializedValue(byte[] serializedKeyAndNamespace, TypeSerializer<K> safeKeySerializer, TypeSerializer<N> safeNamespaceSerializer, TypeSerializer<List<V>> safeValueSerializer) throws Exception { + return new byte[0]; --- End diff -- Maybe we could use a static field to avoid to new the `byte[0]` every time.
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