//conn.addSigHandler(im.pidgin.purple.PurpleInterface.FileSendStart.class, fh);
//conn.addSigHandler(im.pidgin.purple.PurpleInterface.FileSendComplete.class, fh);
byte[] orgArr = new byte[]{'c','d','w','h','d','l'};
String path = fh.packInFile(orgArr);
byte[] bar = fh.unpackFromFile(path);
for (int i=0;i<bar.length;i++)
{
assert(bar[i]==orgArr[i]);
}