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via Stack Overflow by Subash Basnet
, 1 year ago
Cannot close an iteration with a feedback DataStream that does not originate from said iteration.
java.lang.UnsupportedOperationException: Cannot close an iteration with a feedback DataStream that does not originate from said iteration.	at org.apache.flink.streaming.api.datastream.IterativeStream$ConnectedIterativeStreams.closeWith(IterativeStream.java:181)