Fix for PR libgcj/3426:
* gnu/gcj/convert/natIconv.cc: Include CharConversionException.h,
errno.h.
(read): Throw exception if character conversion fails.
* java/io/BufferedInputStream.java (refill): Now package-private.
* java/io/InputStreamReader.java (ready): Simplified.
(refill): New method.
(read): Use it.
Co-Authored-By: David Brownell <david-b@pacbell.net>
From-SVN: r43975
* All files: Updated copyright information.
* COPYING: New file.
* COPYING.LIB: Removed.
* LIBGCJ_LICENSE: We now use GPL + special exception.
From-SVN: r32387
