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https://issues.apache.org/jira/browse/TIKA-970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13428183#comment-13428183
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Jukka Zitting commented on TIKA-970:
------------------------------------

Normally when we directly copy code or data from other projects we record that 
explicitly in our 
[LICENSE.txt|http://svn.apache.org/repos/asf/tika/trunk/LICENSE.txt] file (see 
for example the entry about MIME type info from the file command). The licenses 
that are deemed acceptable for such use are outlined in 
http://www.apache.org/legal/resolved.html.

In this case though it seems like you've just applied information acquired from 
the upstream source. Since facts can't be copyrighted and the amount of 
information used is below what I think could reasonably be claimed to be a 
database covered by copyright (unlike our use of the MIME type registry of the 
file command), I don't believe there's any need for extra licensing apart from 
what you already did above.
                
> Full identification of the JPEG 2000 family of formats
> ------------------------------------------------------
>
>                 Key: TIKA-970
>                 URL: https://issues.apache.org/jira/browse/TIKA-970
>             Project: Tika
>          Issue Type: New Feature
>          Components: mime
>    Affects Versions: 1.3
>            Reporter: Andrew Jackson
>            Priority: Minor
>         Attachments: custom-mimetype.xml
>
>
> Please find attached a suitable set of magic definitions for allowing Tika to 
> identify JP2 containers, codestreams, and the JP2, JPF, JPM and MJ2 file 
> formats. It is based on the 'file' magic from 
> [here|https://github.com/bitsgalore/jp2kMagic], and has been tested against 
> the example files supplied on that site.

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