/**@class java.lang.NullPointerException
@extends java.lang.RuntimeException
Thrown when a program tries to access a field or method of an object or an
element of an array when there is no instance or array to use, that is if the
object or array points to {@code null}. It also occurs in some other, less
obvious circumstances, like a {@code throw e} statement where the {@link java.lang.Throwable} reference is {@code null}.
*/
var NullPointerException = {
};