package application;

import java.time.Clock;
import java.util.ArrayList;
import java.util.List;

public class SocialNetworkingApplication {

    public SocialNetworkingApplication(Clock clock) {
    }

    public void start() {
    }

    public void accept(String message) {
    }

    public List<String> getOutput() {
        return new ArrayList<>();
    }

}

package application;

import java.time.Clock;
import java.util.ArrayList;
import java.util.List;

public class SocialNetworkingApplication {

    public SocialNetworkingApplication(Clock clock) {
    }

    public void accept(String message) {
    }

    public List<String> getOutput() {
        return new ArrayList<>();
    }

}

remove unused method