FULL PRODUCT VERSION :
1.5.0_06

ADDITIONAL OS VERSION INFORMATION :
Windows XP home

A DESCRIPTION OF THE PROBLEM :
I found that if you extend a JFrame and name it 'Ghost', it will run, but it won't be visible. Unix-users have stated they don't have this problem.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
//Windows only :
public class Ghost extends javax.swing.JFrame {
  public static void main(String[] args) {
    Ghost app=new Ghost();
    app.setSize(400,300);
    app.setVisible(true);
  }
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Seeing the window.
ACTUAL -
App won't be visible, not even when Alt-tabbing.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
//Windows only :
public class Ghost extends javax.swing.JFrame {
  public static void main(String[] args) {
    Ghost app=new Ghost();
    app.setSize(400,300);
    app.setVisible(true);
  }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Use another class name.