Github user tillrohrmann commented on the pull request:
https://github.com/apache/flink/pull/344#issuecomment-72831706
It is true that thorough programming is always the best, but Option
encourages you to apply a more functional programming style which in many cases
results in safer code. For example, Scala warns you if the pattern matching on
Option is not exhaustive, whereas this is not the case for arbitrary classes
and null values.
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