diff -r 260d731c9504 -r ff2a253900ed rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Wed Mar 11 16:04:59 2015 +0100
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Wed Mar 11 18:41:12 2015 +0100
@@ -437,9 +437,11 @@
 
         final byte[] byteCodes = m.getCode();
         if (byteCodes == null) {
-            append("  throw 'no code found for ")
+            if (debug("  throw 'no code found for ")) {
+               this
                .append(jc.getClassName()).append('.')
                .append(m.getName()).append("';\n");
+            }
             if (defineProp) {
                 append("}});");
             } else {