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https://issues.apache.org/jira/browse/CSV-121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14029120#comment-14029120
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Emmanuel Bourg commented on CSV-121:
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Or simply disable the error when duplicate column names are found. Being able
to parse malformed or ambiguous input is a plus.
> Exception that the header contains duplicate names when the column names are
> empty.
> -----------------------------------------------------------------------------------
>
> Key: CSV-121
> URL: https://issues.apache.org/jira/browse/CSV-121
> Project: Commons CSV
> Issue Type: Bug
> Reporter: Sebastian Hardt
>
> When having a header like a,,c,d,, an IllegalArgumentException("The header
> contains duplicate names: " +Arrays.toString(header) is thrown because empty
> header names are treated as a header with name. I sended in a pullrequest at
> github: https://github.com/apache/commons-csv/pull/2
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