Request for review for [JBS] (JDK-8004212) java.util.Base64 methods decodeArray and decodeBuffer should return the number of bytes written

[Xueming Shen]

Alan,

It appears the return value is not correct in decode(Bytebuffer...) case if
the buffer is overflow. Here is the webrev for that.

http://cr.openjdk.java.net/~sherman/8004212/webrev/

Thanks,
-Sherman