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Thread: removing the small arrow of Synth L&F JInternalFrame title bar (Nimbus)

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    Java kindergarten chronoz13's Avatar
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    Exclamation removing the small arrow of Synth L&F JInternalFrame title bar (Nimbus)

    im diving around google looking how to remove the small arrow of a JInternalFrame set up with a Synth(Nimbus) Look and Feel
    with a Default L&F
    this code removes some of property of a JInternalFrame object, leaving only the close button
    internalFrame.putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);

    but switching the lookAndFeel of the components using this code, a Synth Style internal frame has a default behavior that retains a small arrow button, a Simple png image is attached, to see what it looks like
    try {
                for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                    if ("Nimbus".equals(info.getName())) {
            } catch (Exception e) {

    whole code for the program
    import java.beans.PropertyVetoException;
    import java.util.logging.Level;
    import java.util.logging.Logger;
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    import javax.swing.JInternalFrame;
    import java.awt.event.ActionListener;
    import java.awt.event.ActionEvent;
    import java.awt.event.MouseAdapter;
    import java.awt.event.MouseEvent;
    import java.awt.Rectangle;
    import java.awt.RenderingHints;
    import java.awt.Graphics;
    import java.awt.Graphics2D;
    import java.awt.Color;
    import java.awt.Point;
    import javax.swing.UIManager;
    import javax.swing.UIManager.LookAndFeelInfo;
    import javax.swing.plaf.InternalFrameUI;
    import javax.swing.plaf.synth.SynthInternalFrameUI;
    public class Window {
        public Window() {
            try {
                for (LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                    if ("Nimbus".equals(info.getName())) {
            } catch (Exception e) {
        public void setUp() {
            JFrame f = new JFrame();
            JPanel p = new JPanel(null);
            JInternalFrame internalFrame = new JInternalFrame();
            internalFrame.setSize(200, 150);
            internalFrame.setLocation(new Point(50 ,2));
            internalFrame.putClientProperty("JInternalFrame.isPalette", Boolean.TRUE);    
            f.setSize(400, 200);
        public static void main(String[] args) {
            new Window();

    until i found this thread on another forum, having the same problem with that arrow
    java - Is it possible to remove the little dropdown arrow in a JInternalFrame? - Stack Overflow

    pointing out this thing
    InternalFrame:InternalFrameTitlePane:"InternalFram eTitlePane.menuButton".icon
    1.) is there a (maybe not an Easy way) but a considerable approach to JUST REMOVE that small arrow button of a Synth Look and Feel Internal frame?
    2.) i ended up on BasicInternalFrameUI, InternalFrameUI, SynthInternalFrameUI classes, where or which of these classes should i focus on to deal with this problem?
    3.) how to use this classes?, google resources gives me tons of confusing codes,

    i need some guides and maybe some idea, for this one
    Attached Images Attached Images

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