Writing non-latin Character to Log file from Java application

Hi Everyone,
I'm encountering a very strange localization issue.
I'm executing the following code from a J2EE application (although the behavior is replicated exactly from a Java console application):
File testFile = new File("D:\\Temp\\blah.txt");
testFile.createNewFile();
Writer output = null;
try {
output = new BufferedWriter( new FileWriter(testFile) );
output.write( "אחד שתיים שלוש" ); // Non-Latin characters
output.write("one two three");
finally {
if (output != null) output.close();
I'm writing non-latin characters (Hebrew in my case) to the file, but these characters are written as question marks:
??? ????? ????one two three
I'm running the project with the following java arguments:
-Dfile.encoding=UTF8 -Duser.region=IL -Duser.language=he
And the Project Properties -> Compiler -> Character Encoding = UTF8
Also, the local Windows Regional Settings are set to Israel / Hebrew.
Can someone please help with this issue?
I've tried this with UTF-8 (instead of UTF8) and still no results.
I suspect this is a Java / Environment issue as it reproduces on a J2EE app and on a console app.
Any help will be greatly appreciated.
Thanks,
Tal.

You should open/close it somehow at every write from different processes.
But I personally prefer different file names to your forced merging, though.

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Writing non-latin Character to Log file from Java application

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