Bug 109702 [IDE] [Progress] startup workspace refresh blocks ui
the refresh action at startup of eclipse blocks the ui and cannot be moved into background. this is a similar problem as mentioned in bugzilla 82406 for the package explorer. only the refresh out of the navigator view has the possibility to switch to background.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEWorkbenchAdvisor.java
}
    /**
     * Checks if the -newUpdates command line argument is present
     * and if so, opens the update manager.
     */
    private void checkUpdates() {
        boolean newUpdates = false;
        String[] commandLineArgs = Platform.getCommandLineArgs();
        for (int i = 0; i < commandLineArgs.length; i++) {
            if (commandLineArgs[i].equalsIgnoreCase("-newUpdates")) { 
                newUpdates = true;
                break;
            }
        }
        if (newUpdates) {
            try {
                SiteManager.handleNewChanges();
            } catch (CoreException e) {
                IDEWorkbenchPlugin.log(
                        "Problem opening update manager", e.getStatus()); 
            }
        }
    }
    /* (non-Javadoc)
     * @see org.eclipse.ui.application.WorkbenchAdvisor#getDefaultPageInput
     */
    public IAdaptable getDefaultPageInput() {
        return ResourcesPlugin.getWorkspace().getRoot();
    }
    /* (non-Javadoc)