/**
  * Returns true if the properties are writable. This method is mainly valuable at setup time to
  * ensure that the properties file is setup correctly.
  */
 public static boolean propertyFileIsWritable() {
   if (manager == null) {
     synchronized (managerLock) {
       if (manager == null) {
         manager = new PropertyManager(propsName);
       }
     }
   }
   return manager.propFileIsWritable();
 }