in datasource-client/src/main/java/org/apache/seatunnel/datasource/configuration/util/OptionRule.java [229:234]
private void verifyRequiredOptionDefaultValue(@NonNull Option<?> option) {
if (option.defaultValue() != null) {
throw new OptionValidationException(
String.format("Required option '%s' should have no default value.", option.key()));
}
}