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https://issues.apache.org/jira/browse/VALIDATOR-378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14990303#comment-14990303
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Sebb commented on VALIDATOR-378:
--------------------------------
As per the Javadoc [1]:
" Note: the class does not check the format of the IBAN number, only the check
digits."
The missing leading zero does not affect the check-digit calculation.
If I remember correctly, the length of the IBAN varies between countries, and
may potentially change.
I'm not sure it is feasible to implement further validation.
[1]
http://commons.apache.org/proper/commons-validator/javadocs/api-1.4.1/org/apache/commons/validator/routines/checkdigit/IBANCheckDigit.html
> IBAN bank identifier with missing leading 0
> --------------------------------------------
>
> Key: VALIDATOR-378
> URL: https://issues.apache.org/jira/browse/VALIDATOR-378
> Project: Commons Validator
> Issue Type: Bug
> Components: Routines
> Affects Versions: 1.4.1 Release
> Reporter: Bennour
>
> The validator accepts as valid an IBAN with a missing zero in the bank
> identifier. For example:
> * CH59 9000 0001 7342 7712 : is valid (should not be)
> * CH59 09000 0001 7342 7712 : is valid
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