Demonstrate runtime failure caused by flat directory vs package decla…

[mvcatsifma]

Bug on main branch: flat com.hyfacademy/ directory causes runtime ClassNotFoundException

The starter repo ships with a flat task-1/com.hyfacademy/ directory (literal dot
in the folder name). The assignment spec requires proper Java package structure, so
students are expected to add package com.hyfacademy;, package com.hyfacademy.model;, etc.

The problem: javac accepts these package declarations regardless of where the
file sits, so compilation passes. But at runtime, the JVM looks for
com/hyfacademy/Main.class (nested directories) and fails because the .class
files live in com.hyfacademy/ (flat, literal dot).

Reproduce

javac task-1/com.hyfacademy/Main.java ...   # exits 0 — no errors
java -cp task-1/com.hyfacademy com.hyfacademy.Main
# Error: Could not find or load main class com.hyfacademy.Main
# Caused by: java.lang.ClassNotFoundException: com.hyfacademy.Main

Impact

Every student who correctly adds package declarations (as required) will hit this
runtime failure. It is not caused by their code — it is caused by the starter
directory structure.

Options

1. Fix the starter repo — rename task-1/com.hyfacademy/ to task-1/com/hyfacademy/
   and add package declarations to the stub files.
2. Leave it intentional — document in the assignment brief that restructuring the
   directory is part of the task ("implement the correct file structure").