FilterInputStream2

A FilterInputStream2 contains another InputStream, which it uses as its basic source of data, possibly transforming the data along the way or providing additional functionality.

Note: unlike FilterInputStream this class delegates every method by default. This means to transform read calls, you need to override multiple methods. On the other hand, it is less trappy: a simple implementation that just overrides close will not force bytes to be read one-at-a-time.