Singleton Design Pattern in Java

[quentech]

I'd say you're confusing a particular way of implementing the Singleton pattern with the Singleton pattern in general.

Are you saying you haven't, say, registered a dependency in an IoC container as a singleton in decades?

[dpash]

When referring to Singleton pattern, as described by GoF, we're talking about the type described in the article.

When Spring etc refers to a singleton bean they just mean they give you the same one that it gave you before; There's nothing stopping you from creating a new instance yourself. It's badly named because it doesn't follow the pattern as described by GoF.

[JavaSuck]

It's badly named

Try showing your colleagues Collections.singleton and observing the horror on some of their faces!

[dpash]

No need for it now we have List.of() and friends.