8006295: Base64.Decoder.wrap(java.io.InputStream) returns InputStream which throws unspecified IOException on attempt to decode invalid Base64 byte stream
8006315: Base64.Decoder decoding methods are not consistent in treating non-padded data
8006530: Base64.getMimeDecoder().decode() throws exception for non-base64 character after adding =
Summary: updated the spec to describe the expected behave explicitly and the implementation to follow
Reviewed-by: alanb, chegar, lancea

8006526: Base64.Decoder.decode(String) spec contains a copy-paste mistake
Summary: to ignore single non-base64 char in mime decoding
Reviewed-by: alanb

Summary: to check null for dec/enc.wrap methods
Reviewed-by: alanb

Reviewed-by: darcy

8004212: java.util.Base64  methods decodeArray and decodeBuffer should return the number of bytes written
Summary: to return the length instead of position
Reviewed-by: alanb

Summary: pushed all base64 files
Reviewed-by: alanb, mduigou