Painting issue with swing titlebar

Question

Hi,
I had already posted this but no body replied so I am posting it again hoping somebody might reply to this now.
In my swing application I wanted a custom titlebar, so I created my own RootPaneUI by taking most of the code from MetalRootPaneUI to get what I wanted.
In order to make my titlebar visible I had to call:
frame.setUndecorated(true);
frame.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
The major issue I am facing now which sounds very weird to me is with the painting of the window. When I start the application sometimes (not always), I see the frame being stuck to the top left corner of the monitor, when I move the mouse over the toolbar/menubar, the frame starts painting the icons of underlying IDE like eclipse or IntelliJ over my application. It seems like a painting issue which is really a very strange behaviour.
This issue does not happen with windowslookandfeel and also works fine for MetalLookAndFeel when the JFrame is decorated to show window decorations(windows titlebar) not the look and feel one(custom titlebar).
I wanted to know if its me who is doing something wrong or is it a swing bug. Is there a way to fix this issue. I searched a number of forums but couldn't find an answer to it.
Thanks in advance.

Answer 1

Hello @Andre_Uhres:
In my application, I am using swing application framework (JSR 296) and I have a splash screen(JFrame) which loads some configuration data and then shows a modal login dialog on top of it. On successful login the login dialog and splash is disposed and the main application frame shows up.
The job of showing splash screen and logging in the application was being done in the main/initial thread. I apolgoize for not being able to provide a sample runnable code because the issue is seen only with my application and not with any other demo programs and it was not quite possible for me to put that huge code here.
public static void main(String args[])
SplashFrame.start();
//Launch the main application
Application.launch(ApplicationMain.class); // swing application framework would launch the frame in the invokeLater method.
class SplashFrame
   public void start()
        // create a splash and show it
       // load the configurations
       // show login dialog
       // on successful login dispose splash and login
}I eventually moved this code into SwingUtilities.invokeLater() but even this didn't help me. I still see the same issue.
public static void main(String args[])
// or use invokeAndWait
SwingUtilities.invokeLater(new Runnable(){
SplashFrame.start();
//Launch the main application
Application.launch(ApplicationMain.class); // swing application framework would launch the frame in the invokeLater method.
}I also tried doing this:
  RepaintManager.setCurrentManager(new RepaintManager()); as I read in some forums that sometimes RepaintManager might need to be overwritten to resolve some painting issues.
FYI: I am using JDK 1.6.0_17
In spite all these, I still see the same issue. Any help much appreciated.
Thanks