FULL PRODUCT VERSION :
java version "1.8.0_40"
Java(TM) SE Runtime Environment (build 1.8.0_40-b25)
Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
OS 10.10.1

A DESCRIPTION OF THE PROBLEM :
When starting a swing application with the options -Dapple.laf.useScreenMenuBar="true" and -splash, the following defects occur:
- Application menu is not displayed
- No dock Icon is displayed
- Keyboard shortcuts (e.g. for application shutdown via Cmd-Q) do not work
- Main frame opens in the background

All these do not occur when using JDK 8u25


REGRESSION.  Last worked in version 8u25

ADDITIONAL REGRESSION INFORMATION: 
java version "1.8.0_25"
Java(TM) SE Runtime Environment (build 1.8.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 25.25-b02, mixed mode)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Start the application below (source code field) with the VM args: 
-Dapple.laf.useScreenMenuBar="true" -splash:/path/to/arbitrary/image




EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
- Application menu is displayed
- Dock Icon is displayed
- Keyboard shortcuts (e.g. for application shutdown via Cmd-Q) work
- Main frame opens in the foreground

ACTUAL -
- Application menu is not displayed
- No dock Icon is displayed
- Keyboard shortcuts (e.g. for application shutdown via Cmd-Q) do not work
- Main frame opens in the background


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;

public class SplashBugMac {
    public static void main(String[] args){
        final JFrame frame = new JFrame(SplashBugMac.class.getSimpleName());
        final JMenuBar menuBar = new JMenuBar();
        menuBar.add(new JMenu("Test Menu"));
        frame.setJMenuBar(menuBar);
        frame.setSize(400, 400);
        frame.setVisible(true);
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Remove the -splash option and implement a splash screen in the application.