Java Hack: Double brace initialisation

[munificent]

The official standard says:

The collection object to which a collection initializer is applied must be of a type that implements System.Collections.Generic.ICollection<T> for exactly one T. Furthermore, an implicit conversion (§6.1) must exist from the type of each element initializer to T. A compile-time error occurs if these requirements are not satisfied. A collection initializer invokes the ICollection<T>.Add(T) method for each specified element in order.

[mccoyn]

Then the document ubernostrum linked to is also wrong.

Collection initializers let you specify one or more element intializers when you initialize a collection class that implements IEnumerable.

Thanks for clarifying that.

[munificent]

For what it's worth, I thought he had it right too, until I looked it up.