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import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;

/*
 * @test
 * @bug 4135833
 * @summary Tests that JComboBox draws correctly if the first item in list is an empty string
 * @library /java/awt/regtesthelpers
 * @build PassFailJFrame
 * @run main/manual bug4135833
 */

public class bug4135833 {
    private static final String INSTRUCTIONS = """
            Press the combo box. If the popup is readable and appears to be sized properly,
            then it passes. The First item is blank intentionally.
            """;

    public static void main(String[] args) throws Exception {
        PassFailJFrame.builder()
                .title("Instructions")
                .instructions(INSTRUCTIONS)
                .columns(50)
                .testUI(bug4135833::createTestUI)
                .build()
                .awaitAndCheck();
    }

    public static JFrame createTestUI() {
        JFrame frame = new JFrame("bug4135833");
        JPanel panel = new JPanel();
        JComboBox comboBox = new JComboBox(new Object[]{"", "Bob", "Hank", "Joe", "Fred"});
        panel.add(comboBox);
        frame.add(panel);
        frame.pack();
        return frame;
    }
}