import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
<BUG>import java.io.OutputStream;
import java.util.List;</BUG>
class SCPEngine {
enum Arg {
SOURCE('f'),

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.LinkedList;
import java.util.List;
class SCPEngine {
enum Arg {
SOURCE('f'),
