JDK118[Win32] rt.exec throws IO Exception when using Japanese exec

rt.exec throws IO Exception when using the exec whose name is Japanese
on Win98 and WinNT4.0 with JDK1.1.8 build "C".
This worked on JDK1.1.7. So this is a regression bug.

How to reproduce:

1) prepare a exe file with kanji name

  A:\TEST>copy args.exe °ú¿ô.exe /v
               -------- --------
               ascii kanji
 
2) compile RunExe.java
 
  import java.io.*;

  public class RunExe {
    public static void main(String args[]) throws IOException {
      Runtime rt = Runtime.getRuntime();
      Process ps = null;
      try {
        ps = rt.exec(args[0]);
      } catch(IOException e) {
        System.out.println("IO Exception spawning \"" + args[0] + "\"");
      }
      if(null == ps) {
        System.out.println("could not exec \"" + args[0] + "\"");
      } else {
        System.out.println("OK");
        ps.destroy();
      }
    }
  }


3) run RunExe.class with a kanji arg on Windows98/NT

  A:\TEST>java RunExe args
  OK

  A:\TEST>java RunExe °ú¿ô
  IO Exception spawning "°ú¿ô"
  could not exec "°ú¿ô"

(*) °ú¿ô : Japanese Kanji Characters

I can't see this problem on Solaris with JDK1.1.8 build "C".