Bring JPanel to front of other objects in java (SWING) -

i want make loading when app process, used jpanel on jtree. when user clicks on jpanel jtreewill selected , jpanel go back. after hiding jpanel never shows again(i don't know why! seems never go forward of jtree).

i need way bring jpanel forward of anything. how can this?

also must mention don't want jdialog. want use jpanel top of element show loading until process finish.

so here have @ least 2 solutions. either go @geoff , @sthupahsmaht suggesting. btw possible use joptionpane automatically creates dialog you.

the other option use glasspane frame.

or yet option use jlayeredpane @jzd suggests.

edit: example showing how use glasspane capture user selections. try following steps:

1.left clicking on glass pane visible @ start. see output.

2.right click it. hides glass pane.

3.left clicking on content pane. see output.

4.right click it. go point 1. enjoy.

import java.awt.color; import java.awt.dimension; import java.awt.event.mouseadapter; import java.awt.event.mouseevent; import javax.swing.jframe; import javax.swing.jpanel; import javax.swing.swingutilities;  public class overpanel extends jpanel {        private static void createandshowgui()     {         final jframe f = new jframe();         f.setpreferredsize(new dimension(400, 300));         f.setdefaultcloseoperation(jframe.exit_on_close);                jpanel glasspanel = new jpanel();         glasspanel.setbackground(color.red);                 glasspanel.addmouselistener(new mouseadapter()         {             @override             public void mousepressed(mouseevent e)             {                 super.mousepressed(e);                 system.out.println("f.getglasspane() mousepressed");                 if(e.getbutton() == mouseevent.button3)                     f.getglasspane().setvisible(false);             }         });         f.setglasspane(glasspanel);               f.getcontentpane().setbackground(color.green);         f.getcontentpane().addmouselistener(new mouseadapter()         {             @override             public void mousepressed(mouseevent e)             {                 super.mousepressed(e);                 system.out.println("f.getcontentpane() mousepressed");                 if(e.getbutton() == mouseevent.button3)                     f.getglasspane().setvisible(true);             }         });         f.getglasspane().setvisible(true);         f.pack();         f.setvisible(true);     }      public static void main(string[] args)     {         swingutilities.invokelater(new runnable()         {             @override             public void run()             {                 createandshowgui();             }         });     } } 

edit2: if want have effect of dialog, can achieve incorporating appropriately code example.

        jpanel panel = new jpanel(new gridlayout(0, 1));         panel.setborder(borderfactory.createlineborder(color.black, 2));         panel.setbackground(color.yellow);         panel.add(new jlabel("i message label"));         panel.add(new jbutton("close"));         jpanel glasspanel = new jpanel(new gridbaglayout());         glasspanel.setopaque(false);         glasspanel.add(panel);