[mooman219]

Not only is this possible, as stated by the article, this level of overloading is incredibly useful for in a number of areas and has been used for a long time.

One use case is API backwards compatibility. If your API wants to change the return type of a function, say from int to double, but also wants to maintain binary backwards compatibility, you can do that. See OverMapped [ https://github.com/Wolvereness/OverMapped ].

Obfuscation is another area and ProGuard employs this to make decompliling more difficult iirc.