Please take a review at http://cr.openjdk.java.net/~weijun/8201867/webrev.00/
When the hole in keytab is right on the 8192 buffer boundary, skip(n) does not return n. I are not sure if I can do something like "while (i < n) i += skip(n)" because skip(n) can return zero and it does not understand EOF. Therefore I readNBytes(n) and discard the result. If you have a better solution, I'll be happy to know. Thanks Max
