/* ------------------------------------------------------------ */
public void setBufferSize(int size) {
HttpOutputStream out = (HttpOutputStream) _httpResponse.getOutputStream();
if (out.isWritten() || _writer != null && _writer.isWritten())
throw new IllegalStateException("Output written");
out.setBufferSize(size);
}
/* ------------------------------------------------------------ */
void commit() throws IOException {
if (_writer != null && _writer.isWritten()) _writer.flush();
else _httpResponse.commit();
}