gistfile1.java

public abstract class Mixologist extends Person {
  protected static Integer numServings = 0;

  
  protected static synchronized void addServing()
  {
    numServings++;
  }
  ...

}

Compiling Simulation
Landlord.jr:98: numServings has private access in Mixologist
        say(" Number of served customers: " + numServings + "\n");
                                              ^
Not generating jrGen/Landlord.java due to errors.
1 error
Landlord.jr:98: numServings has private access in Mixologist
        say(" Number of served customers: " + numServings + "\n");
                                              ^