RTL Languages not supporting negative numbers in NumberFormat

FULL PRODUCT VERSION :
java version "1.6.0_14"
Java(TM) SE Runtime Environment (build 1.6.0_14-b08)
Java HotSpot(TM) Server VM (build 14.0-b16, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
SunOS 5.11 snv_117 i86pc i386 i86pc

A DESCRIPTION OF THE PROBLEM :
When formating a negative number using java.text.NumberFormat for a RTL language, the number returned is invalid. i.e. -1 returns "1-" when it should still return "-1".

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Create a Number Format object using a RTL language locale, such as ar_AE.
Try to format a negative number.
The string returned is incorrect.


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.text.NumberFormat;
import java.util.Locale;

public class NumberFormatTest {

    public static void main(String[] args) {
        Locale locale = new Locale("ar", "AE");
        NumberFormat format = NumberFormat.getNumberInstance(locale);

        String f = format.format(-1);
        System.out.println("Format: " + f);
    }
}

---------- END SOURCE ----------