Registry::container()->get($id) throws an exception if the interface cannot be found

[Jefferson49]

Observed with webtrees 2.2.1

The newly added Registry::container()->get($id) throws an exception if the interface cannot be found:

ReflectionException: Class "Cissee\WebtreesExt\MoreI18N" does not exist in C:\wamp64\www\webtrees\app\Container.php:81
Stack trace:
#0 C:\wamp64\www\webtrees\app\Container.php(81): ReflectionClass->__construct('Cissee\\Webtrees...')
#1 C:\wamp64\www\webtrees\app\Container.php(58): Fisharebest\Webtrees\Container->make('Cissee\\Webtrees...') 

Shouldn't this exception be caught and get($id) could return null instead?

[fisharebest]

I think throwing an exception is the correct action.

The container specification lists specific exceptions that should be thrown.

return null instead?

Containers can contain any type of object - including NULL. At present, we only store objects in it, but this could always change.

[Jefferson49]

o.k., I understand; thanks for providing the background! I did not know that a detailed specification is available.

My take away from the specification is that Registry::container()->get($id) should keep throwing an exception if the interface is not found. However, the specific exception should be: NotFoundExceptionInterface. In my example - which is not representative - a ReflectionException was thrown.

I recognized that webtrees already has a NotFoundInContainerException, which implements the proposed NotFoundExceptionInterface