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Benedikt Ritter commented on VALIDATOR-399: ------------------------------------------- Hello Stephan, the following code works for me: {{assertTrue(validator.isValidISBN13("978-3-8362-2860-2"));}} Can you please provide a minimal failing unit test to reproduce the issue? Thank you! > ISBNValidator does not validate isbn of ebooks > ---------------------------------------------- > > Key: VALIDATOR-399 > URL: https://issues.apache.org/jira/browse/VALIDATOR-399 > Project: Commons Validator > Issue Type: Bug > Components: Framework > Affects Versions: 1.5.0 > Reporter: Stephan Strittmatter > > For example the ISBN of this book is not correct validated: > https://www.rheinwerk-verlag.de/schrodinger-programmiert-abap_3593/ > ISBN 978-3-8362-2860-2 -- This message was sent by Atlassian JIRA (v6.3.4#6332)