}
final TypeRegistry typeRegistry = context.getTypeRegistry();
final Date date1 = typeRegistry.convertToDate
(parameters.getType(0), parameters.getValue(0));
final Date date2 = typeRegistry.convertToDate
(parameters.getType(1), parameters.getValue(1));
if (date1 == null || date2 == null)
{
throw new EvaluationException(LibFormulaErrorValue.ERROR_INVALID_ARGUMENT_VALUE);