Github user kl0u commented on a diff in the pull request:
https://github.com/apache/flink/pull/3624#discussion_r108369832
--- Diff:
flink-libraries/flink-cep/src/main/java/org/apache/flink/cep/nfa/NFA.java ---
@@ -573,6 +608,9 @@ private boolean checkFilterCondition(FilterFunction<T>
condition, T event) throw
computationState.getTimestamp(),
computationState.getVersion());
+ // for a given computation state, we cannot have more than one
matching patterns.
+ Preconditions.checkArgument(paths.size() <= 1);
--- End diff --
Fixing this
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