diff -r 3abae898011d -r 40cabcdcd2be samples/openfixed/src/org/apidesign/openfixed/TrivialEventSupport.java
--- a/samples/openfixed/src/org/apidesign/openfixed/TrivialEventSupport.java	Sun Mar 20 20:52:33 2011 +0100
+++ b/samples/openfixed/src/org/apidesign/openfixed/TrivialEventSupport.java	Thu Oct 30 21:30:10 2014 +0100
@@ -6,6 +6,7 @@
 
 import java.util.List;
 import java.util.concurrent.CopyOnWriteArrayList;
+import org.apidesign.openfixed.Calculator.EventSupport;
 
 /**
  *