

    public static void copy(File source, File dest) throws IOException {
        FileChannel in = null, out = null;
        try {
            in = new FileInputStream(source).getChannel();
            out = new FileOutputStream(dest).getChannel();
            in.transferTo( 0, in.size(), out);
        } finally {
            if (in != null) {
                 in.close();
             }
            if (out != null){
              out.close();
             }
        }
    }

    public static void xCopyDir(String sourceFolder, String destinyFolder) 
                                       throws IOException{
        if (!new File(sourceFolder).isDirectory()){
            throw new IOException("Source Directory error ");
        }
        boolean success = (new File(destinyFolder)).mkdirs();
        
        if (!new File(destinyFolder).isDirectory()){
            throw new IOException("Destini Directory error ");
        }                
        copyRecursiveDir(sourceFolder, destinyFolder);
    }


    private static void copyRecursiveDir(String sourceFolder, String destinyFolder) 
                 throws IOException{
        File file;
        String list[];
        file = new File(sourceFolder);
        if (file.isDirectory()) {
            list = file.list();
            for (int i = 0; i < list.length; i++){
                if ( !new File(sourceFolder + File.separatorChar + list[i]).isFile()){
                    boolean success = (new File(destinyFolder + 
                                            File.separatorChar + list[i])).mkdirs();
                }
                
                copyRecursiveDir(sourceFolder + File.separatorChar + list[i],
                        destinyFolder + File.separatorChar + list[i]);
                
            }
        }
        if(new File(sourceFolder).isFile()){
            copy(new File(sourceFolder), new File(destinyFolder) );
        }
    }