Swing apps doesn't run

Question

I have a problem in using swing. I don\'t know what is the cause of this but i\'m just trying to create a simple frame app using swing at it give me a lot of error.

Answer 1

I had problem when all java Swing apps crashed silently. After trying to launch from command line got the following exception:

Caused by: java.lang.IllegalArgumentException: 181193932 incompatible with Text-specific LCD contrast key

As it's said in JDK-6503988, the problem is connected with ClearType registry setting FontSmoothingGamma.

This can be fixed by running "Adjust ClearType text" from Control panel (cttune.exe) or by changing the registry directly:

reg add "HKEY_CURRENT_USER\Control Panel\Desktop" /t REG_DWORD /v FontSmoothingGamma /d 1024 /f

A reboot may be needed for changes to take the effect.

See also a 10-year-old investigation of the same problem at https://www.rarst.net/software/cleartype-install4j-java-bug/.

Answer 2

This code works for me:

package test;

import javax.swing.JFrame;
public class Test {

    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setVisible(true);
        frame.setSize(100,200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    }
}

I only see a difference at

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

where I added the frame. However your stacktrace looks like there's another error, so first try this and if it still don't work, give us a bit more code to look at.