Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #8491

Re: Buffered reading seems to corrupt data stream

Show all headers | View raw

On 10/3/11 7:58 AM, Qu0ll wrote:
> [...]
> The problem is that for the second or third read, the size variable is
> coming back as garbage (extremely high or even negative value) and the
> reading of the byte array blocks as it waits for a large amount of data
> to be received or crashes with the invalid negative size even though the
> previous size value and the previous bytes themselves are correct.
> However, if I remove the BufferedInputStream wrapping of stream, it
> works perfectly.
>
> Why would that be?

If you don't post a concise-but-complete code example that reliably 
reproduces the problem (i.e. an SSCCE), there's no way to answer that 
question.

The problem you are describing is typical of failure to treat the 
streams as streams, but of course that's the kind of thing that 
DataInputStream is supposed to address for you (and which I believe 
will, as long as you use it correctly…unless perhaps you're using some 
odd-ball Java implementation that might be more buggy than the ones 
you'd usually find on mainstream OSs).

Another way I suppose you could observe the behavior you're describing 
is to be using a datagram socket instead of a stream-oriented socket.

But without a proper code example, there's no way to know what you've 
done wrong.

Pete

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Buffered reading seems to corrupt data stream "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-10-04 01:58 +1100
  Re: Buffered reading seems to corrupt data stream "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-10-04 02:26 +1100
    Re: Buffered reading seems to corrupt data stream Ronny Schütz <usenet.r96@gishpuppy.com> - 2011-10-03 17:54 +0200
      Re: Buffered reading seems to corrupt data stream "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-10-04 07:07 +1100
        Re: Buffered reading seems to corrupt data stream Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2011-10-03 13:18 -0700
      Re: Buffered reading seems to corrupt data stream "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-10-04 10:54 +1100
    Re: Buffered reading seems to corrupt data stream Roedy Green <see_website@mindprod.com.invalid> - 2011-10-03 11:46 -0700
  Re: Buffered reading seems to corrupt data stream Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-10-03 08:44 -0700
  Re: Buffered reading seems to corrupt data stream markspace <-@.> - 2011-10-03 11:33 -0700
    Re: Buffered reading seems to corrupt data stream Lew <lewbloch@gmail.com> - 2011-10-04 08:48 -0700
      Re: Buffered reading seems to corrupt data stream Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2011-10-04 09:07 -0700
        Re: Buffered reading seems to corrupt data stream Lew <lewbloch@gmail.com> - 2011-10-04 12:06 -0700

csiph-web