Review request for 6895456: Eliminate dependency on java.io.ObjectStreamClass during boot

[Mandy Chung]

> Duplicating this method may be a better option for this case (that I 
> typically try to avoid).  I can make this change. 
The new webrev at:
   http://cr.openjdk.java.net/~mchung/6895456/webrev.01/

Mandy