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From "Rene Preissel (JIRA)" <>
Subject [jira] [Comment Edited] (COMPRESS-343) Native Memory Leak in Sevenz-DeflateDecoder
Date Wed, 16 Mar 2016 16:34:33 GMT


Rene Preissel edited comment on COMPRESS-343 at 3/16/16 4:34 PM:

I provided a patch. See attachment or Github:

was (Author: rpreissel):
The same patch you will find on Github:

> Native Memory Leak in Sevenz-DeflateDecoder
> -------------------------------------------
>                 Key: COMPRESS-343
>                 URL:
>             Project: Commons Compress
>          Issue Type: Bug
>          Components: Archivers
>    Affects Versions: 1.10
>            Reporter: Rene Preissel
>         Attachments: COMPRESS-343.patch
> The class ...sevenz.Coders.DeflateDecoder does not close (end()) the Deflater and Inflater.
This can lead to native memory issues: see
> In our case we create a zip archive with >100000 files. The Java heap is around 300MB
(with 2GB max). The native memory is increasing to 8GB and above. Because the Java heap has
no pressure - no GC is triggered, therefore the Deflaters are not collected and the native
memory is not freed.  

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