Returns the wrapped byte array.
Returns {@code true} if the underlying wrapped byte array is null or empty (zero length), {@code false} otherwise.
Returns the <a href="http://en.wikipedia.org/wiki/Base64">Base 64</a>-formatted string representation of the underlying wrapped byte array.
Returns the <a href="http://en.wikipedia.org/wiki/Hexadecimal">Hex</a>-formatted string representation of the underlying wrapped byte array.
A {@code ByteSource} wraps a byte array and provides additional encoding operations. Most users will find the {@link Util} inner class sufficient to construct ByteSource instances.
@since 1.0