src/com/thetransactioncompany/cors/CORSRequestHandler.java
private static String serialize(final Set set, final String sep) {
	
		Iterator it = set.iterator();
	
		String s = "";
	
		while (it.hasNext()) {
			
			s = s + it.next().toString();
			
			if (it.hasNext())
				s = s + sep;
		}
		
		return s;
	}
private static String serialize(final Set set, final String sep) {
	
		Iterator it = set.iterator();
	
		String s = "";
	
		while (it.hasNext()) {
			
			s = s + it.next().toString();
			
			if (it.hasNext())
				s = s + sep;
		}
		
		return s;
	}
Serialises the items of a set into a string. Each item must have a
meaningful {@code toString()} method.

@param set The set to serialise.
@param sep The string separator to apply.

@return The serialised set as string.