code: public static CRFClassifier getClassifier(InputStream in) throws IOException, ClassCastException,
        ClassNotFoundException {
      CRFClassifier crf = new CRFClassifier();
      crf.loadClassifier(in);
      return crf;
    }
docs: Loads a CRF classifier from an InputStream, and returns it. This method
  does not buffer the InputStream, so you should have buffered it before
  calling this method.
  
  @param in
  InputStream to load classifier from
  @return The CRF classifier
  
  @throws IOException
  If there are problems accessing the input stream
  @throws ClassCastException
  If there are problems interpreting the serialized data
  @throws ClassNotFoundException
  If there are problems interpreting the serialized data