void () { myPackagesTable.setPaintBusy(!myCurrentlyInstalling.isEmpty()); myPackagesTable.getEmptyText().setText(StatusText.getDefaultEmptyText()); updateUninstallUpgrade(); // Action button presentations won't be updated if no events occur (e.g. mouse isn't moving, keys aren't being pressed). // In that case emulating activity will help: ActivityTracker.getInstance().inc(); }