Created attachment 141901 [details]
Dialog

1. Create new simple java class

package test;

public class Test {

	public class ClassA {

		public int f1 = 10;

		public int getF1(){
			return f1;
		}

		public void setF1(int f1){
			this.f1 = f1;
		}
	}

	public class ClassB extends ClassA {

		public int f1 = 5;

		public void m1(){
			System.out.println(getF1());
		}
	}
}

2. Right click into body of ClassB, from pop-up menu select Refactor > Encapsulate Field...

3. Select dialog according attached image and press Reafctor

>> Without any warning Refactor breaks semantic of code (see attached image)