NetBeans IDE 7.0.1 (Build 201107282000)

Steps to reproduce: apply Encapsulate Field refactoring on the following program:

public class A {
  public long f;
}
public class B extends A {
  long getF() {
    return 0;
  }
}

Encapsulate Field refactoring produces the uncompilable code below:

public class A {
  public long f;
  public long getF() {
    return f;
  }
  public void setF(long f) {
    this.f = f;
  }
}
public class B extends A {
  long getF() {
    return 0;
  }  	
}