Updating JAVA GUI.

I have this chat server program written in java.

There is one action listener class which monitors actions on connect button (present on GUI JPanel).
please see code below

private class ConnectButtonActionListener implements ActionListener{
        @Override
        public void actionPerformed(ActionEvent ae) {
        h.ui.showBar();
        h.cm.connectToServer();
 
        }
    }

When the user presses the connect button following events happen (please refer code above)
1) h.ui.showBar();

This method is part of class handling GUI of software .It is suppose to display a JProgress bar in south.
This progress bar is just to show that software is in process of connecting to server

2) h.cm.connectToServer();
This method has the code which connects to server .It has other statements but the important one is shown below :

Socket socket=new Socket(ipAddress,portNumber);

My problem :
When i press connect button the Progress bar doesnt appear on screen .After connection is timed out and connection fails ,the bar appears .
While what should happen is explained above.

My Findings till now :
All i could find till now is that there is some problem happening due to
Socket socket=new Socket(ipAddress,portNumber); statement because if i remove this statement the Bar appears the moment user presses Connect Button.

So what you think is going wrong ?