CopyThread.java

public class CopyThread extends Thread {
	private String from;
	private String to;

	public CopyThread(String from, String to) {
		this.from = from;
		this.to = to;
	}

	@Override
	public void run() {
		Copier copier = new Copier();
		copier.copy(from, to);
	}
}