[ https://issues.jboss.org/browse/TEIID-2567?page=com.atlassian.jira.plugin... ] Barry LaFond commented on TEIID-2567: ------------------------------------- You introduced the choice element in Teiid 8.2 which The implementation of the "choice" between a generic/non-standard <sequence> and an <element>. Looking at it from an XML-only standpoint, you've created a scenario where a user would either enter 1-8 elements, or 1 element which may seem OK, but not from a schema standpoint. And JAXB constructs (annotations) can't handle it. The simple fix/minimal change would to convert <allow-language> to an attribute and remove the choice. There has been no Teiid Designer support for editing <allow-language> prior to our upcoming 8.2 release. So any users would be hand-editing the vdb.xml anyway to utilize that option. I wouldn't try to be backward compatible in this case. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira