I2JAV11 — OutputStream semantics question

Summary: When an InputStream is created by an OutputStream, is it permitted to
continue to write anything more to the OutputStream?

If this is not permitted, we should presumably lock out the OutputStream
and throw an exception if another write_X is attempted after the
create_input_stream.

If this is permitted, we need to say whether or not the things written
to the OutputStream after the InputStream is created show up in the
InputStream or not.

closed issue