Throw and Rethrow

[jack.chan]

rethrow can only be put into the catch block. sometimes you may need to do some actions in the catch block before propagating the error further

e.g.

Try
// processing steps
Catch
// perform certain actions e.g. update log / click on error popup etc…
// rethrow to REFramework to handle exception (send email / take screenshot / update queue item ) etc…