Exception the exception thrown from Stream.forEach() in ControllerAdvice

Question

In my Spring MVC Based application, I have a ControllerAdvice defined.

Now, in one of my service classes, I have this parallelStream created:

rawImportList.parallelStream().forEach(rawImportBatch -> {
    rawImportBatch.parallelStream().forEach(this::importNominationFromRawImport)
});

The importNominationFromRawImport() method here, by definition, could throw a custom exception that should ideally be handled in the ControllerAdvice.

What could be the best way to achieve this?

The exception if thrown, and is defined in the ControllerAdvice should be caught there...I dont understand your question exactly :) What is happening now? What is it that you want to happen? — JCompetence, Mar 10 '22 at 08:35
@SMA This line: `rawImportBatch.parallelStream().forEach(this::importNominationFromRawImport)` Complains that the exception needs to be handled. The only option I seem to be having here is to surround it with a try-catch block. That doesn't help since I cannot really propagate this to my API response. I hope this clarifies. — Curious Coder, Mar 10 '22 at 08:43
Your case is the typical (Checked exception in a Lambda expression and how to handle it) A) Catch and convert to a CustomRunTimeException which you can catch in your ControllerAdvice B) Change this CheckedException you are throwing from `ImportNomination` to a CustomRunTimeException C) Look into jooq library which has `Unchecked.consumer()` which throws an UncheckedException — JCompetence, Mar 10 '22 at 08:59

Exception the exception thrown from Stream.forEach() in ControllerAdvice

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