diff -r d907b216f8a1 -r 22885b020f15 taskx/jtulach/against-solution04/test/apifest/CurrencyTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/taskx/jtulach/against-solution04/test/apifest/CurrencyTest.java	Sat Oct 11 13:30:16 2008 +0200
@@ -0,0 +1,24 @@
+package apifest;
+
+import java.math.BigDecimal;
+import java.util.Currency;
+import junit.framework.TestCase;
+import org.apidesign.apifest08.currency.Convertor;
+import org.apidesign.apifest08.currency.InvalidConversionException;
+
+
+/** Write a test that works with version from task A and fails with version B.
+ */
+public class CurrencyTest extends TestCase {
+    public CurrencyTest(String n) {
+        super(n);
+    }
+    
+    public void testCompatibility() throws Exception {
+        Convertor c = new Convertor() {
+            public BigDecimal convert(Currency from, Currency to, BigDecimal amount) throws InvalidConversionException {
+                return null;
+            }
+        };
+    }
+}