} catch (ClassNotFoundException e) {
try {
clazz = (Class<? extends FileSystem>) Class.forName(
HFTP_FILESYSTEM_CLASS_NAME_SINCE_V2_3);
} catch (ClassNotFoundException e1) {
throw new HadoopException("HftpFileSystem class not available " +
e1.getMessage(), e1);
}
}
return clazz;
}