diff -r 000000000000 -r 2ae6e4aa7aef taskx/psmid/against-solution13/test/apifest/CurrencyTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/taskx/psmid/against-solution13/test/apifest/CurrencyTest.java	Sat Oct 25 20:53:00 2008 +0200
@@ -0,0 +1,26 @@
+package apifest;
+
+import junit.framework.TestCase;
+import org.apidesign.apifest08.currency.ConvertorCurrency;
+import org.apidesign.apifest08.currency.ExchangeRate;
+import org.apidesign.apifest08.currency.ExchangeRateProvider;
+
+
+/** 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 {
+       ExchangeRateProvider e = new ExchangeRateProvider(null, null, null, null) {
+           private ExchangeRate getExchangeRate(ConvertorCurrency a, ConvertorCurrency b) { //in version B it shouln't compile
+               return null;
+           }
+       };
+    }
+}