### Code "Exists.java"
### Orignally taken from http://stackoverflow.com/a/3835183/1440785

import java.io.*;
import java.nio.charset.*;

public class Exists {
	public static void main(String[] args) throws Exception {
		if (args.length > 0 && args[0].equals("stat")) {
			new File("bbbääccc").exists();
		}
		else if (args.length > 0 && args[0].equals("new")) {
			new File("bbbääccc").createNewFile();
		}
		else if (args.length > 0 && args[0].equals("list")) {
			File[] files = new File(".").listFiles();

			for (File file : files) {
				if (file.getName().startsWith("bb")) {
					System.out.println(file);
					System.out.println("Hex (current encoding): " + toHex(file.getName().getBytes()) + " --" + file.getName());
					String utf8Str = new String(file.getName().getBytes("UTF-8"), Charset.forName("UTF-8"));
					System.out.println("Hex (UTF8): " + toHex(file.getName().getBytes("UTF-8")) + " --" + utf8Str);

					new File("new/as-is-" + file.getName()).createNewFile();
					new File("new/utf8-" + utf8Str).createNewFile();
				}
			}
		}
	}

	public static String toHex(byte[] bytes) {
		StringBuilder str = new StringBuilder();

		for (int i = 0; i < bytes.length; i++) {
			str.append(String.format("%02x", bytes[i]));
		}

		return str.toString();
	}
}


### stat() output for new File("bbbääccc").exists()

$ LC_CTYPE="en_US.iso88591" strace -f -o out java Exists stat
From file "out": 30989 stat64("bbb\344\344ccc", 0xb7884f2c) = -1 ENOENT (No such file or directory)

$ LC_CTYPE="en_US.utf8" strace -f -o out java Exists stat
From file "out": 31096 stat64("bbb\303\244\303\244ccc", 0xb77a9f2c) = -1 ENOENT (No such file or directory)


### Java Property file.encoding=.. has no impact on filenames

$ LC_CTYPE="en_US.utf8" strace -f -o out java -Dfile.encoding=ISO-8859-1 Exists stat
From file "out": 31121 stat64("bbb\303\244\303\244ccc", 0xb7864f2c) = -1 ENOENT (No such file or directory)

$ LC_CTYPE="en_US.utf8" strace -f -o out java -Dfile.encoding=UTF-8 Exists stat
From file "out": 31367 stat64("bbb\303\244\303\244ccc", 0xb76e1f2c) = -1 ENOENT (No such file or directory)

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=ISO-8859-1 Exists stat
From file "out": 31158 stat64("bbb\344\344ccc", 0xb7759f2c) = -1 ENOENT (No such file or directory)

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=UTF-8 Exists stat
From file "out": 31176 stat64("bbb\344\344ccc", 0xb7851f2c) = -1 ENOENT (No such file or directory)


### Creating a file with umlaut (ä)

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=ISO-8859-1 Exists new

$ ls -al bb*
-rw-rw-r-- 1 user user 0 2013-12-14 15:27 bbb??ccc

$ LC_CTYPE="en_US.iso88591" ls -al bb*
-rw-rw-r-- 1 user user 0 2013-12-14 15:27 bbb��ccc

$ convmv -f iso-8859-1 -t utf8 bbbääccc
Your Perl version has fleas #37757 #49830
Starting a dry run without changes...
mv "./bbb��ccc"	"./bbbääccc"


### Create and list a file with umlaut (ä)

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=ISO-8859-1 Exists new
   // creates new file 'bbbääccc'

$ ls bb*
bbb??ccc

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=ISO-8859-1 Exists list
./bbb��ccc

$ LC_CTYPE="en_US.iso88591" strace -f -o out java -Dfile.encoding=utf8 Exists list
./bbbääccc