private static void setIntProperty(String propertyName, Integer value) {
   if (value != null) {
     administrationService.setGlobalProperty(propertyName, value.toString());
   } else {
     administrationService.setGlobalProperty(propertyName, "");
   }
 }
 private static void setStringProperty(String propertyName, String value) {
   if (value != null) {
     administrationService.setGlobalProperty(propertyName, value);
   } else {
     administrationService.setGlobalProperty(propertyName, "");
   }
 }
 private static void setBoolProperty(String propertyName, Boolean value) {
   if (Boolean.TRUE.equals(value)) {
     administrationService.setGlobalProperty(propertyName, Boolean.TRUE.toString());
   } else {
     administrationService.setGlobalProperty(propertyName, Boolean.FALSE.toString());
   }
 }