RFR: 8028780: JDK KRB5 module throws OutOfMemoryError when CCache is corrupt

[Weijun Wang]

Hi All

Please take a look at
   http://cr.openjdk.java.net/~weijun/8028780/webrev.00/

New codes are added to check for the validity of input raw data so that 
a proper exception (say, GSSException, IOException) is thrown instead of 
unchecked ones like IllegalArgumentException, IndexOutOfBoundException, 
OutOfMemoryError, etc.

Thanks
Max