diff -r 1376481f15e7 -r 469199c2994a emul/src/main/java/java/lang/Long.java
--- a/emul/src/main/java/java/lang/Long.java	Tue Oct 16 11:55:56 2012 +0200
+++ b/emul/src/main/java/java/lang/Long.java	Sun Nov 18 08:51:58 2012 +0100
@@ -25,6 +25,8 @@
 
 package java.lang;
 
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+
 /**
  * The {@code Long} class wraps a value of the primitive type {@code
  * long} in an object. An object of type {@code Long} contains a
@@ -260,13 +262,14 @@
      * @param   i   a {@code long} to be converted.
      * @return  a string representation of the argument in base 10.
      */
+    @JavaScriptBody(args = "i", body = "return i.toString();")
     public static String toString(long i) {
         if (i == Long.MIN_VALUE)
             return "-9223372036854775808";
         int size = (i < 0) ? stringSize(-i) + 1 : stringSize(i);
         char[] buf = new char[size];
         getChars(i, size, buf);
-        return new String(0, size, buf);
+        return new String(buf, 0, size);
     }
 
     /**