MapFactoryInterface Creates Maps Instead of Containers

[XedinUnknown]

Problem

The name MapFactoryInterface suggests that its implementations create maps, i.e. MapInterface instances.
However, it only promises to create vanilla containers, which makes it no more useful than the ContainerFactoryInterface which it extends.

WritableMapFactoryInterface has a similar problem.

Solution

⚠️ This may have unexpected consequences for consumers.

• Change the return type of MapFactoryInterface#createContainerFromArray() to MapInterface.
• Change the return type of WritableMapFactoryInterface#createContainerFromArray() to WritableMapInterface.