diff -r c3dee54ecc15 -r 48053538940a rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java
--- a/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Sun Mar 20 15:26:19 2016 +0100
+++ b/rt/vm/src/main/java/org/apidesign/vm4brwsr/ByteCodeToJavaScript.java	Tue Mar 22 02:51:04 2016 +0100
@@ -180,6 +180,7 @@
     }
 
     private String compileImpl(final String cn) throws IOException {
+        this.numbers.reset();
         this.callbacks = cn.endsWith("/$JsCallbacks$");
         if (jc.getMajor_version() < 50 && !cn.endsWith("/package-info")) {
             throw new IOException("Can't compile " + cn + ". Class file version " + jc.getMajor_version() + "."