diff -r d382dacfd73f -r bb7506513353 rt/vm/src/test/java/org/apidesign/vm4brwsr/SystemTest.java
--- a/rt/vm/src/test/java/org/apidesign/vm4brwsr/SystemTest.java	Tue Feb 26 16:54:16 2013 +0100
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/SystemTest.java	Thu Feb 28 07:48:54 2013 +0100
@@ -19,6 +19,7 @@
 
 import org.testng.annotations.BeforeClass;
 import static org.testng.Assert.*;
+import org.testng.annotations.AfterClass;
 import org.testng.annotations.Test;
 
 /**
@@ -51,6 +52,10 @@
         code = TestVM.compileClass(
             "org/apidesign/bck2brwsr/emul/lang/System");
     }
+    @AfterClass
+    public static void releaseTheCode() {
+        code = null;
+    }
     
 }