diff -r a13e33fd5c2e -r 146ae7b52b64 rt/vmtest/src/test/java/org/apidesign/bck2brwsr/tck/StaticUse.java
--- a/rt/vmtest/src/test/java/org/apidesign/bck2brwsr/tck/StaticUse.java	Wed Feb 27 14:38:16 2013 +0100
+++ b/rt/vmtest/src/test/java/org/apidesign/bck2brwsr/tck/StaticUse.java	Tue Apr 02 15:40:51 2013 +0200
@@ -19,6 +19,13 @@
 
 class StaticUse {
     public static final Object NON_NULL = new Object();
+    public static int cnt;
+    static {
+        if (cnt++ != 0) {
+            throw new IllegalStateException("Multiple initialization of a <cinit>");
+        }
+    }
+    
     StaticUse() {
     }