/**
  * Write the given bytes to the given output file. <TT>ffd</TT> = 1 refers to the job's standard
  * output stream; <TT>ffd</TT> = 2 refers to the job's standard error stream; other values refer
  * to a previously opened file.
  *
  * @param theJobBackend Job Backend that is calling this method.
  * @param ffd Frontend file descriptor.
  * @param buf Array of bytes to write.
  * @param off Index of first byte to write.
  * @param len Number of bytes to write.
  * @exception IOException Thrown if an I/O error occurred.
  */
 public synchronized void outputFileWrite(
     JobBackendRef theJobBackend, int ffd, byte[] buf, int off, int len) throws IOException {
   myFrontendFileWriter.outputFileWrite(theJobBackend, ffd, len);
 }