Desktop API does not work as expected for file scheme URI

OPERATING SYSTEM(S):
--------------------
Red Hat Enterprise Linux 5 (Japanese Environment)

FULL JDK VERSION(S):
-------------------
java version "1.6.0_03"
Java(TM) SE Runtime Environment (build 1.6.0_03-b05)
Java HotSpot(TM) Client VM (build 1.6.0_03-b05, mixed mode)

DESCRIPTION:
------------
Desktop API does not work as expected for file scheme URI if URI has non-ASCII character.
It seems non-ASCII character is not escaped properly.
Since gnome-open command works fine, Desktop API should work.

Steps to Recreate:

(Please run following commands on Japanese environment)

1. Compile and run attached testcase

   $ cd /tmp
   $ javac DesktopOpenTest.java
   $ export LC_MESSAGES=C
   $ echo "test" > `echo -e "\xe3\x81\x82\xe3\x81\x84\xe3\x81\x86\xe3\x81\x88\xe3\x81\x8a.txt"`
   $ gedit "file:$PWD/%e3%81%82%e3%81%84%e3%81%86%e3%81%88%e3%81%8a.txt" &
   $ java DesktopOpenTest "file:$PWD/%e3%81%82%e3%81%84%e3%81%86%e3%81%88%e3%81%8a.txt"

2. Following message is displayed on console
   file:/tmp/XXXXX.txt: malformed fuke bane or URI <== PROBLEM
   (Note: XXXXX is Japanese Characters (AIUEO))


=====================================================================
import java.awt.*;
import java.io.*;
import java.net.*;

class DesktopOpenTest {
  DesktopOpenTest(String uri) {
    Desktop desktop = Desktop.getDesktop();
    if (desktop.isSupported(Desktop.Action.OPEN)) {
      System.out.println("Open "+uri+" ...");
      try {
        desktop.open(new File(new URI(uri)));
      } catch (Exception e) {
        e.printStackTrace();
      }
    }
  }
  public static void main(String[] args) {
    for(String uri: args) new DesktopOpenTest(uri);
  }
}