Overriding and weaking access modifiers

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According to the JSL 8.4.8.1

An instance method m1, declared in class C, overrides another instance method m2, declared in class A iff all of the following are true:

• 
  

  C is a subclass of A.

  
  


• 
  

  The signature of m1 is a subsignature (§8.4.2) of the signature of m2.

  
  


• 
  

  Either:

  
  
  
  
  • 
    

    m2 is public, protected, or declared with default access in the same package as C, or

    
    
  
  
  • 
    

    m1 overrides a method m3 (m3 distinct from m1, m3 distinct from m2), such that m3 overrides m2.

    
    
  
  
  
  

it doesn't contradict to the folowing code:

public class Main{

    public void f(){ }
    public static class A extends Main{
        protected void f(){ }
    }

    public static void main(String[] args){

    }
}

DEMO

But it's not compiling, although the overriden version of the method f() has protected access modifier, as said in the second point of the rule I provided. What's wrong?

asked 1 min ago

St.Antario

1,875

Overriding and weaking access modifiers