I was working on a module in Drupal 8, and came across this thread answering a question on class auto-loading for Doctrine annotations: https://stackoverflow.com/questions/14629137/jmsserializer-stand-alone-annotation-does-not-exist-or-cannot-be-auto-loaded
At multiple places in the above referenced thread, the OP or answerers reference to something like an application bootstrapper. For example, OP updated the question with:
EDIT: my final solution was to create a bootstrap file with the following content:
Another comment says:
I put this in my application bootrapper (/app/boostrap/app.php), although it could go in the autoloader (/app/boostrap/autoload.php) as well as long as it follows the composer autoload
Although I think I understand how class auto-loading works in Drupal 8, its relation to composer, Drupal's own bootstrapping (which afaik usually refers to Drupal initialising itself for a page load) and ability to use composer to add dependency on packages for a Drupal installation, I have no idea what "application bootstrapper" means in Drupal 8, or special significance of these files (/app/boostrap/app.php, /app/boostrap/autoload.php).
Am I missing something or were people referring to composer packages (and not a Drupal 8 concept) when they used these terms.