package test.of.arguments;

class Bar {
  public static void staticCall() {
     int a = 0;
     return;
  }

  public void test() {
     staticCall();
  }
}
class Foo {
   Foo f ;

   public Foo(Foo f) {
      this.f=f;
   }

   public Foo() {
      super();
   }

   void test() {
      return;
   }

   Foo getF() { 
      return f;
   }

   public void run(Bar b,String s) {
      //legeal call: argument object
      int length= s.length();

      //legal
      if(f==null || f.getF()==null)
          return;

      //legal
      test();

      //legal
      b.test();

      //legal
      getF();

      //illegal
      f.f.run(b,s);
   }


   public void run() {
   }

   public static void main(String[] args) {
      System.out.println("***** A correct implementation should report the following violations:\n"+
                         "********* Foo.java:50");
      Foo aFoo=new Foo(new Foo(new Foo()));
      aFoo.run(new Bar(),"Hello,world");
   }
}