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Swing(jFrame) can not initialize

jMonkeyEngine Hub May 22, 2026
Source

Even this simple code can not run pass the first point:

package test;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class Test {
public static void main(String
 args) {

    SwingUtilities.invokeLater(() -> {
        System.out.println("1");
        JFrame f = new JFrame("Test");
        System.out.println("1");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        System.out.println("1");
        f.setSize(300, 300);
        System.out.println("1");
        f.setLocationRelativeTo(null);
        System.out.println("1");
        f.setVisible(true);
        System.out.println("1");
        System.out.println("VISIBLE");
    });
}

}

it only prints 1, i do not know why. NO ERROR CODES, just runs forever

btw I am using mac 12.7.6

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