[Java AUT / JavaScript test] .Exists waits when window exists but is not visible

RefreshMappingInfo() makes it worse. It causes the waitAliasChild() to wait as well.

Here is proof that the issue is nothing to do with a quirk of the AUT.

Example Java App:

package com.example;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class App extends JPanel implements ActionListener {
    private static JFrame childFrame;
    private static boolean secondFrameVisible = false;

    public App() {
        childFrame = new JFrame("Child Window");
        childFrame.setName("Child Frame");
        JLabel childLabel = new JLabel("This is a child frame");
        childLabel.setPreferredSize(new Dimension(400, 400));
        childFrame.getContentPane().add(childLabel);
        childFrame.pack();
        toggleSecondFrameVisibility();

        JButton toggleButton = new JButton("Toggle visibility");
        toggleButton.setActionCommand("vis");
        toggleButton.addActionListener(this);
        add(toggleButton);
    }

    private static void createAndShowGUI() {
        JFrame frame = new JFrame("FrameDemo");
        frame.setName("Main Frame");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setContentPane(new App());
        frame.pack();
        frame.setVisible(true);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        toggleSecondFrameVisibility();
    }


    private static void toggleSecondFrameVisibility(){
        secondFrameVisible = !secondFrameVisible;
        childFrame.setVisible(secondFrameVisible);
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
}

It looks like this - a main window ("FrameDemo") with a child window ("Child Window").
When you click the "Toggle Visibility" button in the main window, the Child Window is set to invisible.

Then create a Javascript project in TestComplete, add the following code to script Unit1:

function debugme(){
  Aliases.javaw.WaitAliasChild("Child_Frame").Exists; // <-- set breakpoint here
  Aliases.javaw.WaitAliasChild("Child_Frame").Exists; // <-- set breakpoint here
  Aliases.javaw.WaitAliasChild("Child_Frame").Exists; // <-- set breakpoint here
  Aliases.javaw.WaitAliasChild("Child_Frame").Exists; // <-- set breakpoint here
}

1. Run the sample Java app
2. Put a breakpoint on line 2 in the TestComplete IDE (The .Exists line)
3. Right click the function -> run this routine
4. F10 to step - no wait
5. Click the "Toggle Visibility" button in the sample app to hide the child frame
6. F10 to step - WAITS!!
7. Click the "Toggle Visibility" button in the sample app to show the child frame
8. F10 to step - no wait