[jcifs] "DCERPC pipe is no longer open" in DcerpcPipeHandle.doSendFragment()

[Marasim]

I am getting a lot of these messages and somehow cannot make sense of it. Can 
anybody please point me to the documentation or the reason so that I can 
understand and avoid getting into this?

Thanks a lot for your help!

Marasim

--

protected void doSendFragment(byte[] buf,
                    int off,
                    int length,
                    boolean isDirect) throws IOException {
        if (out != null && out.isOpen() == false)
            throw new IOException("DCERPC pipe is no longer open");

        if (in == null)
            in = (SmbFileInputStream)pipe.getNamedPipeInputStream();
        if (out == null)
            out = (SmbFileOutputStream)pipe.getNamedPipeOutputStream();
        if (isDirect) {
            out.writeDirect( buf, off, length, 1 );
            return;
        }
        out.write(buf, off, length);
    }