SwingWorker extended class not showing overided methods

Question

Here is my sample code... I am facing problem that my swingWorker extended class is only showing doInBackground() to me as overided method. I want to use done() and process() methods also but my class is not showing it @overided nor calling done/process method where it is required to call leave the while loop stuff etc. because I know it is infinite loop but why not the process method is called upon publish()?

 public class getChatSwingWorkerThread extends SwingWorker<String , String> {
 private final JTextArea chat_text_area;
 private PostDataConnection post = null;
 private BasicUserInterface chatWindow = null;

public getChatSwingWorkerThread(JTextArea text_area){
    chatWindow = new BasicUserInterface();
    this.chat_text_area = text_area;
    post = new PostDataConnection();
}
@Override
protected String doInBackground() throws Exception {
    String returnData = "";
    while(true){
        returnData = post.getAvailableChat();
        if(!returnData.equals("")){
            publish(returnData);
            }
       } 

}
protected void process(String returnData) {

    chat_text_area.append(returnData);
}

 public void done(String returnData) throws InterruptedException, ExecutionException{
    chat_text_area.append(get());
}

Answer 1

That is because your process and done method have a different signature then the one in the super class.

The signature for the process method is

protected void process(List<V> chunks)

which in your case comes down to

protected void process(List<String> chunks)

The done method does not have any parameters

protected void done()