code: private static List<Policy> createPolicies(final String property) {
  		if (property == null || property.isEmpty()) {
  			return Collections.<Policy>singletonList(new StartupPolicy(null));
  		} else {
  			ServiceLoader<Policy> loader = new ServiceLoader<Policy>(Policy.class, String.class);
  			List<Policy> policies = new ArrayList<Policy>();
  			for (String entry : property.split(",")) {
  				int separator = entry.indexOf(':');
  				if (separator == -1) {
  					policies.add(loader.create(entry, (String) null));
  				} else {
  					String name = entry.substring(0, separator).trim();
  					String argument = entry.substring(separator + 1).trim();
  					policies.add(loader.create(name, argument));
  				}
  			}
  			return policies;
  		}
  	}
docs: Creates policies from a nullable string.
  
  @param property
  Nullable string with policies to create
  @return Created policies