JFrame text displaying wrong

Question

I am creating an app that uses an undecorated border and wanted to add a shadow to the my JFrame. I got the shadow working but in the process the text got all screwed up.

Due to the size of the program I can not post all of my code but the problem does go away when I remove this line. setBackground(new Color(0, 0, 0, 0)); So what could cause the text to display blurry and incorrectly? It is bolder and some of the letters seem to be taller. And I cannot post a picture since I do not have a level 10 reputation. Here is more of my code:

    int extendBy=30;
    setMaximumSize(new Dimension(width + extendBy, height + extendBy));
    setMinimumSize(new Dimension(width + extendBy, height + extendBy));
    setPreferredSize(new Dimension(width + extendBy, height + extendBy));
setUndecorated(true);

setBackground(new Color(0, 0, 0, 0));   // all hell breaks loose here
setContentPane(new ShadowPane());
getContentPane().setBackground(Color.BLACK);

    setLocationRelativeTo(null);
    setLayout(null);   // I know setting null this is bad practice

edit: acquired 10 reputation so here is a pic (look at W or A or k):

Answer 1

Try to override the paintComponent method for this JTable.

How to do it: Overriding paintComponent

For Your case i would use anti-aliasing to get rid of those unwanted effects.

jTable1 = new javax.swing.JTable(){
        public void paintComponent(Graphics g) {
            super.paintComponent(g);
            Graphics2D g2 = (Graphics2D)g;
            g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON );
        }
    };