FULL PRODUCT VERSION :
java version "1.8.0_11"
Java(TM) SE Runtime Environment (build 1.8.0_11-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.11-b03, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows 7 64-bit

A DESCRIPTION OF THE PROBLEM :
First of all sorry if this is not in the correct category, I could not find the relevant category for java.time.*

When parsing a negative Duration with 0 seconds and a few nanoseconds, the nanoseconds are wrongly considered positive:

System.out.println(Duration.parse("PT-1.5S")); // PT-1.5S : ok
System.out.println(Duration.parse("PT-0.5S")); // PT0.5S : error



STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
System.out.println(Duration.parse("PT-0.5S"));

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
PT-0.5S
ACTUAL -
PT0.5S

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package com.company;

import java.time.*;

public class Main {
    public static void main(String[] args) {

        System.out.println(Duration.parse("PT-0.5S"));
    }
}

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