Interface class Initialization

Question

A class or interface type T will be initialized immediately before the first occurrence of any one of the following:
1..T is a class and an instance of T is created.
2..T is a class and a static method declared by T is invoked.
3..A static field declared by T is assigned.
4..A static field declared by T is used and the field is not a constant variable (?4.12.4).
5..T is a top-level class, and an assert statement (?14.10) lexically nested within T is executed.
Above is from JLS.
public class Demo {
     static int y;
     int x=instanceMethod();
     int instanceMethod()
          System.out.println("instance method");
          return 5;
     public static void main(String[] args)
          Demo.y=15;
          Demo.staticMethod();
     static void staticMethod()
          System.out.println("static method");
}In this case the output is static method
This contradicts points 2 and 3, since in this program static method is invoked and a static field is assigned , yet instanceMethod is not called, i.e not initialized

Answer 1

Initialization of a class consists of executing its static initializers and the initializers for static fields (class variables) declared in the class. Initialization of an interface consists of executing the initializers for fields (constants) declared there.
Your class has no static initializer nor class variable initializer...
Therefore I wouldn't say your example illustrates the statement you mentioned.