Bug 109290 [WorkbenchLauncher] splash screen blocks the switch workspace dialog and creates illusion of hung application
While starting up the "select workspace" dialog sometimes comes up behind the splashscreen and is completely obscured. A user may interpret this as the application having hung.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/ChooseWorkspaceDialog.java
boolean gcj = Boolean.getBoolean("eclipse.gcj"); 
		String vmName = System.getProperty("java.vm.name");
		if (!gcj && vmName != null && vmName.indexOf("libgcj") != -1) { 
			composite.getDisplay().asyncExec(new Runnable() {
				public void run() {
					
					
					
					setMessage(IDEWorkbenchMessages.UnsupportedVM_message,
							IMessageProvider.WARNING);
				}
			});
		}
        
        Dialog.applyDialogFont(composite);
        return composite;
    }
    /**
     * Configures the given shell in preparation for opening this window
     * in it.
     * <p>
     * The default implementation of this framework method
     * sets the shell's image and gives it a grid layout. 
     * Subclasses may extend or reimplement.
     * </p>
     *