Minor changes

src/main/java/org/erc/pftps/MainWindow.java

@@ -33,6 +33,7 @@
 import java.awt.Dimension;
 import java.awt.event.ActionListener;
 import java.awt.event.ActionEvent;
+import javax.swing.JScrollPane;
 
 
 public class MainWindow extends JFrame{
@@ -48,6 +49,7 @@ public class MainWindow extends JFrame{
 	private MessageConsole messageConsole;
 
 	private FTPServer ftpServer;
+	private JScrollPane scrollPane;
 
 	/**
 	 * Create the application.
@@ -119,17 +121,20 @@ public void actionPerformed(ActionEvent e) {
 		txtPort.setColumns(5);
 		txtPort.setBounds(66, 43, 46, 20);
 		getContentPane().add(txtPort);
+
+		scrollPane = new JScrollPane();
+		scrollPane.setBounds(10, 71, 503, 227);
+		getContentPane().add(scrollPane);
 
 		txtLog = new JTextArea();
+		scrollPane.setViewportView(txtLog);
 		txtLog.setText("Ready.");
 		txtLog.setForeground(Color.LIGHT_GRAY);
 		txtLog.setBackground(Color.BLACK);
 		txtLog.setFont(new Font("Monospaced", Font.PLAIN, 10));
 		txtLog.setColumns(20);
 		txtLog.setRows(20);
 		txtLog.setEditable(false);
-		txtLog.setBounds(10, 71, 503, 227);
-		getContentPane().add(txtLog);
 
 		messageConsole = new MessageConsole(txtLog);
 		setFocusTraversalPolicy(new FocusTraversalOnArray(new Component[]{getContentPane(), lblFolder, btStartStop, lblPort, txtPort, lblUser, txtUser, lblPassword, txtPassword, btnStart}));

src/main/java/org/erc/pftps/MessageConsole.java

@@ -101,9 +101,9 @@ public void flush() {
 		}
 
 		private void handleAppend(String message){
-			if (document.getLength() == 0)
+			if (document.getLength() == 0){
 				buffer.setLength(0);
-
+			}
 			if (EOL.equals(message)){
 				buffer.append(message);
 			} else {

src/main/java/org/erc/pftps/Start.java

@@ -45,9 +45,17 @@ public void run() {
 		        }
 	        });
 		}else{
-			FTPServer server = new FTPServer();
-			server.setUser(args[0], args[1], args[2]);
-			server.start();
+			if (args.length == 4){
+				FTPServer server = new FTPServer();
+				server.setPort(Integer.parseInt(args[0]));
+				server.setUser(args[1], args[2], args[3]);
+				server.start();
+			} else{
+				System.out.println("Invalid arguments");
+				System.out.println("");
+				System.out.println("Use without arguments for GUI or call with:");
+				System.out.println("<port> <user> <password> <folder>");
+			}
 		}
 	}
 

src/main/java/org/erc/pftps/services/FTPServer.java

@@ -34,6 +34,10 @@ public FTPServer(){
 		userManager = new InMemoryUserManager();
 	}
 
+	public void setPort(int port){
+		this.port = port;
+	}
+
 	public void setUser(String login,String password,String home){
 		BaseUser user = new BaseUser();
 	    user.setName(login);