Something

  public int threadRuns = 0;
  public void actionPerformed(ActionEvent e) { // Kui vajutatakse kuhugi vms..
    JButton source = (JButton)(e.getSource());
if(source.getText() == "....... Alusta proxide otsingut .......") {
if(threadRuns == 0) { 
threadRuns = 1;
    try {
info_box.append("!!!PROXY_THREAD STARTED !!!\nVajuta uuesti kui tahad, et lõppeks\n");
      alusta_thread();
    } catch(Exception o) { System.out.println("Problem.."); }
}
}
}