Class in autoloaded file not recognized

Question

The class definition of \MyOrganization\OurLibrary\Application isn't recognized in a script in a framework package that uses the core library. It is recognized in an exact copy of the script in the core folder. What is the problem, and how do I resolve it?

library/core/Application.php

namespace MyOrganization\OurLibrary;
class Application {
    public static function someMethod() ...
}

library/core/composer.json

{
  "name": "myorganization/core",
  "type": "library",
  "config": { "secure-http": false },
  "require": { ... }
  "require-dev": { ... }
  "autoload": {
     "files": ["Application.php"],
  }
}

library/framework/composer.json

{
    "name": "myorganization/framework",
    "type": "library",
    "require": { 
        "myorganization/core": "dev-master",
        ...
    },
    "require-dev": { ... }
    "config": {
        "optimize-autoloader": true,
        "preferred-install": "dist",
        "sort-packages": true
    },
    "repositories": [
        {
            "type": "path",
            "url": "../core",
            "options": { "symlink": true }
        }
    ]
}

library/(core|framework)/script.php

require __DIR__.'/vendor/autoload.php';
\MyOrganization\OurLibrary\Application::someMethod();