FULL PRODUCT VERSION :
java version "1.5.0_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_01-b08)
Java HotSpot(TM) Client VM (build 1.5.0_01-b08, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
Format recognized by both DecimalFormat and NumberFormat works correctly for most of locales. Where the group length is constant. For example : xxx,xxx,xxx.xx

In Nepali numeric system such grouping is done

XX,XX,XXX.XXX

Last integer is grouped with length 3 and others with length 2.
12,12,123.00.



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
package a;

import java.text.DecimalFormat;

public class ABCD {
    public static void main(String[] args) {
        DecimalFormat decimalFormat = new DecimalFormat("##,##,###.##");
        String myString = decimalFormat.format(1111111111.1111d);
        System.out.println("Real : " + myString);
        System.out.println("Expected : " + "1,11,11,11,111.11");
    }
}

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
1,11,11,11,111.11
ACTUAL -
1,111,111,111.11

REPRODUCIBILITY :
This bug can be reproduced always.

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Ref: Steps to Reproduce
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CUSTOMER SUBMITTED WORKAROUND :
Parsing the number manually.