The problem is a context might try to create a new bean instance even if no CreationalContext is given.

It seems the CDI spec is not completely clear in this area:

The get() method may not create a new instance of the given contextual type unless a CreationalContext is given.

But it doesn't specify which of the two methods. The javadoc on the other hand states the javax.enterprise.context.spi.Context.get(Contextual<T>, CreationalContext<T>) method returns "the contextual instance".

Nevertheless I think it would be definitely better to call javax.enterprise.context.spi.Context.get(Contextual<T>) to avoid confusion.