java - calling a swing from a menu item not working -

i'm having menu item displayed part of windows icon

item = new menuitem("update options"); item.addactionlistener(new actionlistener() {     public void actionperformed(actionevent e) {         login("update");     } }); popup.add(item); trayicon.setpopupmenu(popup); 

if click on menu item, supposed call login method below , show me jframe panel added

public void login(string operation){     final jframe frame=new jframe();     jpanel panel = new jpanel();     jbutton blogin = new jbutton("start");     blogin.setbounds(110,150,80,20);     panel.add(blogin);     panel.setsize(300,220);     panel.setlocation(500,280);     panel.setlayout (null);      frame.setsize(300,220);     frame.setlocation(500,280);     frame.setlayout(new borderlayout());     frame.add(panel, borderlayout.center);     frame.setdefaultcloseoperation(jframe.exit_on_close);     frame.setvisible(true);     blogin.addactionlistener(new actionlistener() {         public void actionperformed(actionevent ae) {             system.out.println("entering action");             flag=false;             frame.dispose();     }});      while(flag)     {          //system.out.println("waiting flag");      } } 

this not working , showing frame , no panel or button inside.but, if call same login method main method, populating contents.

please me solve this.