Operator exists() - implement backpressure and include last value in exception cause #2988
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akarnokd added a commit that referenced this pull request May 29, 2015
Operator exists() - implement backpressure and include last value in exception cause
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Implemented backpressure using
SingleDelayedProducerand while I was there ensured that the last value is in the exception cause when the predicate throws an exception.