Github user kl0u commented on a diff in the pull request:
https://github.com/apache/flink/pull/3477#discussion_r105698031
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/NFA.java ---
@@ -71,19 +70,16 @@
private final NonDuplicatingTypeSerializer<T>
nonDuplicatingTypeSerializer;
// Buffer used to store the matched events
--- End diff --
Why `String` and not `State`? This may have problems with backwards
compatibility.
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