// Check, if at least one application module was selected for installation
// (not necessary, if an older product is updated or additional modules are
// added in maintenance mode).
boolean applicationSelected = false;
if ( data.olderVersionExists() || data.sameVersionExists() ) {
applicationSelected = true;
} else {
data.setApplicationModulesChecked(false);
ModuleCtrl.checkApplicationSelection(packageData, data);
applicationSelected = data.applicationModulesChecked();