catch (IllegalArgumentException _) { throw new InvalidClassException ("invalid requested type for field " + field_name + " in class " + klass.getName()); } catch (IOException e) { throw e; }
  private char getCharField (Object obj, Class klass, String field_name)    throws IOException  {    try      {	Field f = getField (klass, field_name);	char b = f.getChar (obj);	return b;      }    catch (Exception _)      {	throw new IOException("Unexpected exception " + _);      }      }