diff -r 6193e735f4d1 -r c4e57ec5f0df rt/vm/src/test/java/org/apidesign/vm4brwsr/ReloadingTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rt/vm/src/test/java/org/apidesign/vm4brwsr/ReloadingTest.java	Mon Oct 14 16:44:55 2013 +0200
@@ -0,0 +1,72 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.vm4brwsr;
+
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.Test;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+public class ReloadingTest {
+    private static TestVM code;
+    
+    @Test public void verifyUsageOf() throws Exception {
+        code.execCode("First hello", 
+            Hello.class, "hello__Ljava_lang_String_2",
+            "Hello World!"
+        );
+
+        byte[] arr = BytesLoader.readClass("org/apidesign/vm4brwsr/Hello.class");
+        for (int i = 0; i < arr.length; i++) {
+            if (arr[i] == 'H' && arr[i + 1] == 'e' && arr[i + 2] == 'l') {
+                arr[i] = 'A';
+                arr[i + 1] = 'h';
+                arr[i + 2] = 'o';
+                arr[i + 3] = 'y';
+                arr[i + 4] = ' ';
+                break;
+            }
+        }
+        
+        code.execCode("Redefine class",
+            Hello.class, "reloadYourSelf__Ljava_lang_Object_2_3B",
+            null, arr
+        );
+
+        code.execCode("Second hello", 
+            Hello.class, "hello__Ljava_lang_String_2",
+            "Ahoy  World!"
+        );
+    }
+    
+    
+    @BeforeClass 
+    public static void compileTheCode() throws Exception {
+        code = TestVM.compileClass(
+            "org/apidesign/vm4brwsr/Hello");
+    }
+    @AfterClass
+    public static void releaseTheCode() {
+        code = null;
+    }
+    
+}
+