Question

How remove the:

Type safety: The expression of type
List[] needs unchecked conversion to conform to List<Object>[]

compiler warning in the following expression:

List<Object>[] arrayOfList = new List[10];

Answer 1

Afaik the only way is to use @SuppressWarnings("unchecked"). At least if you want to avoid the raw type warning that occurs in Matthew’s answer.

But you should rethink your design. An Array of Lists? Is that really necessary? Why not a List of Lists? And if it gets too complicated (a List of List of Map of List to…), use custom data types. This really makes the code much more readable.

And as an unrelated side note: You should write List<Object>[] arrayOfList. The brackets are part of the type, not the variable.