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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 4190516
 * @summary JInternalFrame should be maximized when Desktop resized
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual bug4190516
 */

import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.SwingUtilities;

public class bug4190516 {

    private static final String INSTRUCTIONS = """
        Try to resize frame "bug4190516 Frame".
        If the internal frame remains maximized
        inside this frame then test passes, else test fails.""";

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
                .title("bug4190516 Instructions")
                .instructions(INSTRUCTIONS)
                .columns(25)
                .testUI(bug4190516::createTestUI)
                .build()
                .awaitAndCheck();
    }

    private static JFrame createTestUI() {
        JFrame fr = new JFrame("bug4190516 Frame");
        JDesktopPane jdp = new JDesktopPane();
        fr.getContentPane().add(jdp);

        JInternalFrame jif = new JInternalFrame("Title", true, true, true, true);
        jdp.add(jif);
        jif.setSize(150, 150);
        jif.setVisible(true);

        fr.setSize(300, 200);
        try {
            jif.setMaximum(true);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        SwingUtilities.updateComponentTreeUI(fr);
        return fr;
    }
}