Java: append to JTextPanel not working inside ActionListener -

i working on program work queries logs , posts results in textarea box. can append box outside action listener search, not within.

i have added system out lines append text , shows being received not posting. internal frame.

any pointing me fixing appreciated.

package net.fedson;  import javax.swing.*; import java.awt.*;  class searchframe { private textpanel textpanel; private formpanel formpanel; private string user; private string password; private string logs;   public jinternalframe searchframe() {     jinternalframe mboxframe = new jinternalframe("search", true,             true, true, true);     mboxframe.setlayout(new borderlayout());      textpanel = new textpanel();      //btn = new btnpanel();     //toolbar = new toolbar();     formpanel = new formpanel();     formpanel.setformlistener(new formlistener() {         @override         public void formeventoccured(formevent e) {             string email = e.getemail();             string = e.getextra();             string direction = e.getdirection();             string time = e.gettime();              configgetpropertyvalues properties = new configgetpropertyvalues();             try {                 properties.getpropertyvalues();                 user = properties.getuser();                 password = properties.getpassword();             }             catch(exception e1){                 system.out.println("exception: " + e1);              }finally {                  textpanel.clearpanel();                 //textpanel.appendtext("starting search\n");                   search s = new search(email, extra, direction, time, user, password);                 logs = s.startsearch();             }             //system.out.println(logs);             textpanel.appendtext(logs); //doesnt work         }     });     textpanel.appendtext("outside listener"); //works     mboxframe.add(formpanel, borderlayout.west);      //add(toolbar, borderlayout.north);     mboxframe.add(textpanel, borderlayout.center);      //add(btn, borderlayout.south);        mboxframe.setsize(800, 600);      mboxframe.setdefaultcloseoperation(jframe.hide_on_close);      mboxframe.setvisible(true);      return mboxframe; }  public void writetext(string text){     textpanel.appendtext(text); } }