Support UnrecoverableException

[noCharger]

Description

Improve entry point exception handling by:

1. Support rethrow UnrecoverableException and record emr job failure
2. Switch general exception to throwable

Check List

• Implemented unit tests
• Implemented tests for combination with other commands
• New added source code should include a copyright header
• Commits are signed per the DCO using --signoff

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[ykmr1224]

Why do we need to hide constructor?

[noCharger]

Why do we need to hide constructor?

Using "factory method pattern" is a common practice in Scala

1. Readability: Using UnrecoverableException(cause) is often more readable than new UnrecoverableException(cause).
2. Immutability: It can help enforce immutability by preventing direct instantiation of the class.
3. Subclassing control: By making the constructor private, you prevent other classes from directly subclassing UnrecoverableException.

[ykmr1224]

I think factory pattern is normally used when we want to create instance of different classes for the same interface based on the parameters. (In this case, if we create different type of instance for UnrecoverableException, it makes more sense).

For 3, do we have reason to avoid subclassing of UnrecoverableException?

[noCharger]

I think factory pattern is normally used when we want to create instance of different classes for the same interface based on the parameters. (In this case, if we create different type of instance for UnrecoverableException, it makes more sense).

factory method / static factory method is much simpler than the full-fledged Factory Pattern—still valuable, but primarily used to hide constructor complexity and ensure uniform creation rather than managing multiple types.
Users of the class can directly call UnrecoverableException(...) without needing to understand which specific constructors are available.

For 3, do we have reason to avoid subclassing of UnrecoverableException?

You aren't gonna need it