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From "Wolfgang Bergner (JIRA)" <>
Subject [jira] [Commented] (COMPRESS-54) Add 7zip or RAR archive support
Date Tue, 15 Jan 2013 07:58:14 GMT


Wolfgang Bergner commented on COMPRESS-54:

Just had a look at the 7z SDK on It really looks like C-style
Java code, which is pretty hard to integrate into a Java project.
1. As some time has passed meanwhile, has anyone managed to convert it into a stream based
Java implementation? Or even tried to embedd it into Apache Commons Compress?
2. Does anyone know if licenses could be a conflicting issue?
> Add 7zip or RAR archive support
> -------------------------------
>                 Key: COMPRESS-54
>                 URL:
>             Project: Commons Compress
>          Issue Type: New Feature
>          Components: Archivers
>         Environment: N/A
>            Reporter: Tim Pinet
>            Priority: Minor
>   Original Estimate: 30h
>  Remaining Estimate: 30h
> Has anyone looked into adding support for 7zip and RAR file types? Using the j7zip and
junrar libraries I was able to get a rough protoype working with commons-compress but only
with extract support for RAR (due to licencing issues). Also, my prototype performance is
poor so I definately need to improve it.

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