What is exception propagation in Scala?

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Can anyone explain the term execution propagation in Scala?
Jul 25 in Apache Spark by Gurung
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1 answer to this question.

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Hi,

  • When a function experiences an exception, it looks for a handler to deal with it. 
  • When it fails to find one, it searches for one in the caller method. Failing there, it looks for yet another in the next caller in the chain. 
  • Whenever it does find a handler, it makes it catch the exception. This is exception propagation.
answered Jul 25 by Gitika
• 25,360 points

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