diff -r d382dacfd73f -r f73c1a0234fb rt/emul/compact/src/main/java/java/lang/System.java
--- a/rt/emul/compact/src/main/java/java/lang/System.java	Tue Feb 26 16:54:16 2013 +0100
+++ b/rt/emul/compact/src/main/java/java/lang/System.java	Mon Oct 07 14:20:58 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>
@@ -33,4 +35,31 @@
         return org.apidesign.bck2brwsr.emul.lang.System.currentTimeMillis();
     }
     
+    public static int identityHashCode(Object obj) {
+        return obj.defaultHashCode();
+    }
+
+    public static String getProperty(String name) {
+        return null;
+    }
+    
+    public static String getProperty(String key, String def) {
+        return def;
+    }
+    
+    /**
+     * Returns the system-dependent line separator string.  It always
+     * returns the same value - the initial value of the {@linkplain
+     * #getProperty(String) system property} {@code line.separator}.
+     *
+     * <p>On UNIX systems, it returns {@code "\n"}; on Microsoft
+     * Windows systems it returns {@code "\r\n"}.
+     */
+    public static String lineSeparator() {
+        return "\n";
+    }
+
+    @JavaScriptBody(args = { "exitCode" }, body = "window.close();")
+    public static void exit(int exitCode) {
+    }
 }