diff -r fe3567c7b522 -r 6e49193b04f1 rt/emul/compact/src/main/java/java/lang/System.java
--- a/rt/emul/compact/src/main/java/java/lang/System.java	Sat Sep 07 13:56:22 2013 +0200
+++ b/rt/emul/compact/src/main/java/java/lang/System.java	Wed Sep 11 14:45:06 2013 +0200
@@ -17,6 +17,8 @@
  */
 package java.lang;
 
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+
 /** Poor man's re-implementation of most important System methods.
  *
  * @author Jaroslav Tulach <jtulach@netbeans.org>
@@ -56,4 +58,8 @@
     public static String lineSeparator() {
         return "\n";
     }
+
+    @JavaScriptBody(args = { "exitCode" }, body = "window.close();")
+    public static void exit(int exitCode) {
+    }
 }