I have a problem where I can't write files with accents in the file name on Solaris.

Given following code

public static void main(String[] args) {
    System.out.println("Charset = "+ Charset.defaultCharset().toString());
    System.out.println("testéörtkuoë");
    FileWriter fw = null;
    try {
        fw  = new FileWriter("testéörtkuoë");
        fw.write("testéörtkuoëéörtkuoë");
        fw.close();

I get following output

Charset = ISO-8859-1
test??rtkuo?

and I get a file called "test??rtkuo?"

Based on info I found on StackOverflow, I tried to call the Java app by adding "-Dfile.encoding=UTF-8" at startup. This returns following output

Charset = UTF-8
testéörtkuoë

But the filename is still "test??rtkuo?"

Any help is much appreciated.

Stef