Why should one use Objects.requireNonNull()?

Question

I have noted that many Java 8 methods in Oracle JDK use Objects.requireNonNull(), which internally throws NullPointerException if the given object

Answer 1

I think it should be used in copy constructors and some other cases like DI whose input parameter is an object, you should check if the parameter is null. In such circumstances, you can use this static method conveniently.