private static InputStream ReadFile1() throws IOException {
    	File file = File.createTempFile("aws-java-sdk-", ".txt");
        //file.deleteOnExit();

        Writer writer = new OutputStreamWriter(new FileOutputStream(file));
        writer.write("abcdefghijklmnopqrstuvwxyz\n");
        writer.write("01234567890112345678901234\n");
        writer.write("01234567890112345678901234\n");
        writer.write("abcdefghijklmnopqrstuvwxyz\n");
        writer.close();
        
        FileInputStream fin = new FileInputStream(file);
        return fin;
    }