1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/task1/solution06/src/org/apidesign/apifest08/currency/Assert.java	Sun Sep 28 14:12:38 2008 +0200
     1.3 @@ -0,0 +1,9 @@
     1.4 +package org.apidesign.apifest08.currency;
     1.5 +
     1.6 +public class Assert {
     1.7 +	static void notNull(Object value, String argumentName) {
     1.8 +		if(value == null) {
     1.9 +			throw new IllegalArgumentException("The argument '" + argumentName + "' connot not be null");
    1.10 +		}
    1.11 +	}
    1.12 +}