code: private static Object readFieldValue(final Object obj, final Field field) {
      try {
        return field.get(obj);
      } catch (Exception ex) {
        throw new JBBPException("Can't get value from field [" + field + ']', ex);
      }
    }
docs: Inside auxiliary method to read object field value.
  
  @param obj   an object which field is read
  @param field a field to be read
  @return a value from the field of the object
  @throws JBBPException if the field can't be read
  @since 1.1