1.1 --- a/task1/solution06/src/org/apidesign/apifest08/currency/Assert.java	Sun Sep 28 14:12:38 2008 +0200
     1.2 +++ b/task1/solution06/src/org/apidesign/apifest08/currency/Assert.java	Tue Sep 30 12:24:45 2008 +0200
     1.3 @@ -1,9 +1,11 @@
     1.4  package org.apidesign.apifest08.currency;
     1.5  
     1.6 -public class Assert {
     1.7 +public final class Assert {
     1.8  	static void notNull(Object value, String argumentName) {
     1.9  		if(value == null) {
    1.10  			throw new IllegalArgumentException("The argument '" + argumentName + "' connot not be null");
    1.11  		}
    1.12  	}
    1.13  }
    1.14 +
    1.15 +