JWindow as message box

Question

I am programming in Java1.1.8 using Visual Age 3.0. I am trying to show a JWindow to alert the user that a query is running. Here's my problem:"
If I run the method as is, it blows up on the pn.loadTable line. The JWindow shows up fine, is painted, and looks to be working ok. If I run the Wait dialog from a thread outside this method, the JWindow comes up not paointed, but the table loads with the query results. I am using a multiColumnListbox for my table. Any suggestions on how to solve this problem are greatly appreciated. Thanks, jlav
public void prodtree_TreeSelectionEvents() {
     Runnable t = new Runnable() {
          public void run() {
               try {
                    WaitWindow wd = new WaitWindow();
                    wd.show();
                    thread.sleep(100);
                    DefaultMutableTreeNode dm = (DefaultMutableTreeNode) ivjProdtree.getLastSelectedPathComponent();
                    ProductNode pn = (ProductNode) dm.getUserObject();
                    wd.repaint();
                    System.out.println("before table load");
                    pn.loadTable(ivjprodtable, conn);
                    System.out.println("after table load");
                    ivjJTextField2.setText("0");
                    ivjJSplitPane1.setDividerLocation(0);
                    getAfterQuery();
                    wd.dispose();
               } catch (Exception e) {
                    e.printStackTrace();
     Thread thread = new Thread(t);
     thread.start();
     return;
}

Answer 1

hard 2 know whats going on here. However, this
sequence of events is questionable.
I just cant tell what your GUI thread is doing, and if
you are freeing it so it candisplay properly your
window after you set it visible.
Is your window modal at all?Thanks dnoyeB for answering. I am fairly new to Java and this is bugging me. The GUI is a physical compositoinn of a JWindow in a class called WaitWindow. On the init of the main applet (MkdTrx) I am building a tree for selecting product by dept, sub dept, commodity, and class. When the user expands the tree and clicks on a commmodity for instance, the WaitWindow displays the message while the database search is taking place. When the multiColumnListobx is loaded, the JWindow disposes. My frustration is that this works about half the time, the other half the applet blows up after the JWindow is displayed. Thanks again for your help. I'm not sure if you need more code, please let me know.
jlav143