Hello people, Analizing the JIRA issue https://issues.apache.org/jira/browse/LANG-1008 the contributors noticed that NumberUtils.max/min methods all have the same problem: They all throw an IllegalArgumentException when according to the official documentation (Oracle|Sun) says that a NullPointerException must be thrown when an argument must not be null.
However according to Apache Commons Lang Developer Guide, these methods are all correct. This guide says that "When throwing an exception to indicate a bad argument, always try to throw IllegalArgumentException, even if the argument was null. Do not throw NullPointerException.". This mail was sent in order to discuss around and make decisions to solve this dilemma where the Java official specification says X and the Apache official specification says Y. My sincere thanks for your time and consideration, -- Thiago Andrade
