diff -r d65b3a2fbfaf -r 033d51e026b0 emul/src/main/java/java/lang/Float.java
--- a/emul/src/main/java/java/lang/Float.java	Sun Sep 30 18:29:37 2012 -0700
+++ b/emul/src/main/java/java/lang/Float.java	Tue Oct 23 16:50:27 2012 +0200
@@ -25,6 +25,8 @@
 
 package java.lang;
 
+import org.apidesign.bck2brwsr.core.JavaScriptBody;
+
 /**
  * The {@code Float} class wraps a value of primitive type
  * {@code float} in an object. An object of type
@@ -190,6 +192,7 @@
      * @param   f   the float to be converted.
      * @return a string representation of the argument.
      */
+    @JavaScriptBody(args="d", body="return d.toString();")
     public static String toString(float f) {
         throw new UnsupportedOperationException();
 //        return new FloatingDecimal(f).toJavaFormatString();