stack overflow problem Java BufferedWriter version

// Modified from http://javadb.com/write-to-file-using-bufferedwriter

import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

/**
 *
 * @author javadb.com
 */
public class Main {

    /**
     * Prints some data to a file using a BufferedWriter
     */
    public void writeToFile(String filename) {

        BufferedWriter bufferedWriter = null;

        try {

            //Construct the BufferedWriter object
            bufferedWriter = new BufferedWriter(new FileWriter(filename));
            for (int i = 1; i <= 10000000; i++) {
                bufferedWriter.write(String.valueOf(i));
                bufferedWriter.newLine();
            }

        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
        } finally {
            //Close the BufferedWriter
            try {
                if (bufferedWriter != null) {
                    bufferedWriter.flush();
                    bufferedWriter.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        new Main().writeToFile("/tmp/file");
    }
}