JMenu dropdowns doesn't look like native menu dropdown in windows vista.
List of differences below.
1. Difference in the appearance of the menu separator
2. Difference in the menu item selection. On Win XP, the menu selection looks same on both native and java(winlaf).
3. Difference in CheckboxMenuItem and RadioButtonMenuItem.
4. Native menu have vertical separator and the separator portion have different background for icons,checkbox and radio buttons.But swing dropdown menu doesn't have.
Please find the attached image files for compare.
Theme: windows vista default theme.