Github user sihuazhou commented on a diff in the pull request:
https://github.com/apache/flink/pull/6156#discussion_r194795632
--- Diff:
flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBListState.java
---
@@ -237,4 +242,16 @@ public void addAll(List<V> values) throws Exception {
return keySerializationStream.toByteArray();
}
+
+ @Override
+ public List<V> getInternal() {
+ List<V> list = new ArrayList<>();
+ get().forEach(list::add);
--- End diff --
There seems could be NPE here, cause `get()` may return `null`.
---