package org.sakaiproject.component.app.podcasts; public class Utilities { private Utilities() { }; /** * Checks that the value isn't null. * @param arg argument to check. * @param name name of variable used in exception message. * @throws IllegalStateException if the supplied argument is null. */ public static void checkSet(Object arg, String name) { if (arg == null) { throw new IllegalStateException("The variable "+ name+ " hasn't been set."); } } }