docs: private static String joinStringsSpaceSeparated(List<? extends IPrimitiveType<String>> theStrings) {
  		StringBuilder b = new StringBuilder();
  		for (IPrimitiveType<String> next : theStrings) {
  			if (next.isEmpty()) {
  				continue;
  			}
  			if (b.length() > 0) {
  				b.append(' ');
  			}
  			b.append(next.getValue());
  		}
  		return b.toString();
  	}