Github user dawidwys commented on a diff in the pull request:
https://github.com/apache/flink/pull/4296#discussion_r131628265
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/compiler/NFACompiler.java
---
@@ -386,6 +387,19 @@ private void checkPatternNameUniqueness(final Pattern
pattern) {
return copyOfSink;
}
+ private State<T> copy(final State<T> state) {
+ final State<T> copyOfState = new
State<>(state.getName(), state.getStateType());
--- End diff --
The copy should be made with `createState` method which does ensure there
is a unique name assigned, which is neccessary for the serialization.
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