code: public static Object getConvertedUISelectManyValue(
              FacesContext facesContext, UISelectMany selectMany,
              Object submittedValue) throws ConverterException
      {
          // do not consider the valueType attribute
          return getConvertedUISelectManyValue(facesContext, selectMany,
                  submittedValue, false);
      }
docs: Invokes getConvertedUISelectManyValue() with considerValueType = false, thus
  implementing the standard behavior of the spec (valueType comes from Tomahawk).
  
  @param facesContext
  @param selectMany
  @param submittedValue
  @return
  @throws ConverterException