diff -r a236a9f137ac -r 19497b4312bb vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java	Mon Oct 08 17:10:27 2012 -0700
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/StringTest.java	Tue Oct 09 11:11:58 2012 -0700
@@ -30,9 +30,12 @@
         assertExec(
             "Five executions should generate 5Hello World!",
             "org_apidesign_vm4brwsr_StringSample_toStringTestLjava_lang_StringI",
-            "5Hello World!", 5
+            "Hello World!5", 5
         );
     }
+    @Test public void toStringConcatenationJava() throws Exception {
+        assertEquals("Hello World!5", StringSample.toStringTest(5));
+    }
     
     private static void assertExec(String msg, String methodName, Object expRes, Object... args) throws Exception {
         StringBuilder sb = new StringBuilder();