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https://issues.apache.org/jira/browse/COMPRESS-514?focusedWorklogId=434261&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-434261
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ASF GitHub Bot logged work on COMPRESS-514:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 17/May/20 21:55
Start Date: 17/May/20 21:55
Worklog Time Spent: 10m
Work Description: coveralls edited a comment on pull request #98:
URL: https://github.com/apache/commons-compress/pull/98#issuecomment-627008631
[](https://coveralls.io/builds/30846895)
Coverage decreased (-0.08%) to 87.162% when pulling
**54be6c4f5ae59b0d6174f36de6500496cdf5ea99 on akelday:COMPRESS-514-SevenZFile**
into **a5ccbd6c55f8df73aa5c13f48aed8d363c722c3a on apache:master**.
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Issue Time Tracking
-------------------
Worklog Id: (was: 434261)
Time Spent: 1h (was: 50m)
> SevenZFile fails with encoded header over 2GiB
> ----------------------------------------------
>
> Key: COMPRESS-514
> URL: https://issues.apache.org/jira/browse/COMPRESS-514
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.20
> Reporter: A Kelday
> Priority: Minor
> Attachments: HeaderChannelBuffer.java
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> When reading what some may call a large encrypted 7zip file (1.2TB with 22
> million files), the read fails at the header stage with the trace below. Is
> this within the spec? I've written some code to handle it, because I did
> actually need to extract the file in java. If that's of any use I can provide
> it (it's a naive wrapper that just pages in a buffer at a time).
>
> {code:java}
> Exception in thread "main" java.io.IOException: Cannot handle
> unpackSize2416988886
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.assertFitsIntoInt(SevenZFile.java:1523)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.readEncodedHeader(SevenZFile.java:622)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.initializeArchive(SevenZFile.java:532)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:468)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:337)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:129)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:116)
> {code}
> 7zip itself can also open it (and display/extract etc.), here are the stats:
>
>
> {code:java}
> Size: 2 489 903 580 875
> Packed Size: 1 349 110 308 832
> Folders: 40 005
> Files: 22 073 957
> CRC: E26F6A96
> {code}
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