diff --git a/src/test/java/bytecode/OLFun2Test.java b/src/test/java/bytecode/OLFun2Test.java
index a38f405b..d352f028 100644
--- a/src/test/java/bytecode/OLFun2Test.java
+++ b/src/test/java/bytecode/OLFun2Test.java
@@ -72,7 +72,7 @@ public class OLFun2Test {
         assertNotNull(m);
     }
 
-    @AfterClass
+    //@AfterClass
     public static void cleanUp() {
         TestCleanUp.cleanUpDirectory(new File(generatedByteCodeDirectory), f -> f.getName().contains(".class"));
     }
diff --git a/src/test/resources/testBytecode/manually/OLFunTest.java b/src/test/resources/testBytecode/manually/OLFunTest.java
index 8a2603a1..6a4f09dd 100644
--- a/src/test/resources/testBytecode/manually/OLFunTest.java
+++ b/src/test/resources/testBytecode/manually/OLFunTest.java
@@ -1,9 +1,10 @@
 public class OLFunTest{
     public static void main(String[] args){
         var olFun2 = new OLFun2();
-        olFun2.m((Integer x) -> x);
-        olFun2.m((Integer x) -> (Double) Double.valueOf(x));
-        olFun2.m((Double x) -> x);
-        olFun2.m((Double x) -> x.intValue());
+        Integer i = olFun2.m((Integer x) -> x);
+        i = olFun2.m((Double x) -> x.intValue());
+
+        Double d = olFun2.m((Integer x) -> (Double) Double.valueOf(x));
+        d = olFun2.m((Double x) -> x);
     }
 }
\ No newline at end of file